The international organizations that Nigeria belongs to are:

1. United Nations
2. Commonwealth of Nations (Secretariat) UK. Membership since: 1949
3. Commonwealth Secretariat
4. African Caribbean and Pacific (ACP). Belgium
5. African Union (AU) Secretariat. Addis Ababa, Ethiopia. Founding Member, 1963
6. Economic Community of West African States(ECOWAS), Abuja, Nigeria. Founding Member, 1975
7. Non-Aligned Movement (NAM) Coordinating Bureau
8. IJN Peacekeeping Operations Budget
9. Multi-National Joint Task Force (MNJTF), N’djamena, Chad. Founding member since 2015. MDA – MFA/MOD/ONSA
10. New Partnership for Africa’s Development (NEPAD)
11. United Nations Development Programme (UNDP)
12. Organization for Economic Cooperation and Development (OECD). France
13. United Nations Children’s Fund (UNICEF)
14. United Nations Population Fund (UNFPA). New York, USA. Membership since: 1969
15. UN Industrial Development Organization (UNDO) Austria;Membership since: 1973
16. United Nations Office on Drugs and Crime (UNODC)
17. International Fund for Agricultural Development (IFAD). Rome, Italy
18. United Nations Educational, Scientific and Cultural Organization (UNESCO). France. Membership since: 1963
19. International Bank for Reconstruction Development (IBRD)
20. International Development Association (IDA)
21. International Monetary Fund (IMF)
22. International Finance Corporation (IFC)
23. African Development Fund (ADF)
24. International Court of Justice (ICJ)
25. Permanent Court of Arbitration (PCA). The Netherlands
26. International Police (INTERPOL)
27. International Criminal Court (ICC) – 1998Rome Statute. The Hague
28. South – South Cooperation (SSC) /Partners in Population and Development (PPD)
29. International Tribunals
30. Lake Chad Basin Commission (LCBC). N’Djamena, Chad. Membership since 1964
31. Gulf of Guinea Commission
32. Organization of Islamic Cooperation (OIC) – General secretariat Jeddah, Saudi Arabia. Membership since: 1975 as observer and 1986 as full member
33. Chemical Weapons Convention (CWC)/Organization for the Prohibition of Chemical Weapons (OPCW)
34. Comprehensive Nuclear Test Ban Treaty Organization (CTBTO)
35. Biological Weapons Convention (BWC). Geneva, Switzerland
36. Organization of Petroleum Exporting Countries (OPEC)
37. African Petroleum Producers Organization (APPO)
38. United Nations Human Settlements Programme (UN Habitat)
39. International Atomic Energy Agency (IAEA)
40. Organization for Economic Cooperation of Countries
41. United Nations Institute for Training and Research (UNITAR)
42. Group of 77 and China
43. World Health Organization (WHO). Geneva, Switzerland. Membership
44. United Nations Programme on HIV/AIDS (UNAIDS)
45. World Trade Organization (WTO)
46. World Intellectual Property Organization (WIPO)
47. Convention on International Trade in Endangered Species of Wild Fauna and Flora Species (CITES)
48. United Nations Framework Convention on Climate Change (UNFCCC)
49. Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade
50. Stockholm Convention on Persistent Organic Pollutants Switzerland. Membership since: 2004
51. Minimata Convention on Mercury. Membership since: 2013 but Nigeria yet to ratify
52. Vienna Convention to phase out Ozone depleting substances/Montreal Protocol on Substances that deplete the Ozone Layer.
53. Strategic Approach to International Chemical Management (SAICM)
54. United Nations Environment Programme (UNEP)
55. Food and Agriculture Organization (FAO). Rome, Italy
56. World Food Programme (WFP). Rome, Italy
57. Arms Trade Treaty
58. Mine Ban Treaty (Ottawa Convention)
59. International Telecommunication Satellite Org. (ITSO) USA
60. World Customs Organization
61. International Standard Organization (ISO)
62. International Organization for Migration. (I0M) Switzerland
63. International Tribunal for the Law of the Sea (ITLOS)
64. United Nations Conference on Trade and Development (UNCTAD)
65. Gas Exporting Countries Forum (GECF)
66. International Maritime Organization (IMO). London
67. World Meteorological Organization (WMO). Geneva, Switzerland
68. International Labour Organization (ILO)
69. IJN Women
70. Federation of International Football Association (FIFA)
71. International Olympic Committee (IOC)
72. International Telecommunications Union (ITU). Switzerland Membership since: 1961
73. Universal Postal Union, Switzerland. Membership since: 1961
74. Governmental Advisory Council/lnternational Corporation for Assigned Names & Numbers (ICANN)
75. Consultative Group on International Agricultural Research (CGIAR)
76. International Commission for the Conservation of Atlantic Tunas (ICCAT). Spain
77. World Organization for Animal Health (OIE). Paris, France
78. Codex Alimentarius Commission (CAC)
79. International Cooperative Alliance (ICA). Belgium
80. International Aids Transparency Initiative (IATI)
81. Internet Governance Forum (IGF). Switzerland
82. Basel Convention on the Control of Hazardous Waste
83. United Nations Forum on Forest (UNFF) International Agreement on Forest (IAF) UN Headquarters, New York.
84. International Tropical Timber Organization(ITTO) Timber Organization (ATO)
85. Inter-Governmental Group of 24 on Financial & Monetary Affairs (G-24)
86. International Center for Settlement of Investment Dispute (ICSID)
87. Global Environmental Facility (GEF)
88. OPEC Fund for International Development (OFID)
89. African Capacity Building Foundation (ACBF) (1991)
90. African Trade Insurance
91. African Development Bank (AfDB)
92. IDEP Institute for Economic Development and Planning
93. Multilateral Investment Guarantee Agency (MIGA)
94. Africa 50
95. AFRI-EXIM Bank (1993)
96. ECOWAS Bank for Investment Development (EBID) (1999)
97. Islamic Development Bank (lsDB)
98. World Custom Organization
99. African Fertilizer Financing Mechanism(AFFM)
100. Africa Trade Insurance
101. Shelter-Afrique (1982)
102. International Islamic Finance Corporation (ITFC)
103. Islamic Corporation for the Development of the Private Sector (ICD).
104. Islamic Corporation for Insurance of Investment and Export Credit (ICIEC)
105. African Capacity Building Foundation
106. Global Fund for HIV/AIDS, Tuberculosis and Malaria (2001)
107. Forum of Federations
108. World Anti-counterfeit Congress
109. Pharmaceutical Inspection Cooperation/Scheme (PIC/S)
110. Pharmaco Vigilance Uppsala Monitoring Centre. Sweden
111. International Conference of Drug Regulatory Authorities
112. WHO Special Programme on Tropical Diseases Research (TDR) Training
113. WHO Programme on Framework Convention on Tobacco Control (FCTC)
114. Joint Learning Network (JLN). Washington DC, USA
115. International Sugar Organization
116. Common Fund for Commodities (CFC)
117. Cocoa Producers Alliance Nigeria
118. International Rubber Study Group (IRSG)
119. International Cocoa Organization (ICCO)
120. International Trademark Association (ITA)
121. International Civil Defense Organization (ICDO), Switzerland. Membership since: 2004
122. United Nations Interrogation Crime and Justice Research Institute (UNICRI)
123. International Seabed Authority
124. International Institute for the Unification of Private Law (UNIDROIT). Rome, Italy
125. International Law Development Organization (IDLO)
126. African Training & Research Centre for Development (CAFRAD)
127. Commonwealth Foundation (CF). London, UK. Membership since: 1949
128. Inter-Agency Committee on Cooperation in Energy Related Research & Development Activities with OPEC Member Countries
129. Commonwealth Fund for Tech. Cooperation (CFTC) Membership since: 1949
130. African Union (AU) Peace Fund. Addis Ababa, Ethiopia
131. Pan African Parliament (PAP). Midrand, South Africa. Membership since 2004
132. African Union Labour and Social Affairs Commission (AU-LSAC). Addis Ababa, Ethiopia. Membership since 1960
133. ECOWAS Parliament
134. ECOWAS Court of Justice
135. International Astronautical Federation (IAF)
136. Committee on Space Research (COSPAR)
137. IJN Committee on the Peaceful Uses of Outer Space
138. Maritime Organization of West and Central Africa (MOWCA)
139. International Hydrographic (IHO)
140. African Civil Aviation (AFCAC). Dakar, Senegal
141. Airports Council International (ACI). Montreal, Canada.
142. International Maritime Security Organization (IMSO)
143. Union of African Shippers Council (UASC)
144. Banjul Accord Group Aviation Safety Oversight Organization (BAGASOO). Abuja, Nigeria. Membership since 2009
145. Abidjan-Lagos Corridor Organization (ALCO)
146. International Hydrological Organization (IHO). Paris, France
147. International Commission on Large DAM (ICOLD), France
148. International Federation on Ageing (IFA)
149. International Volley Ball Association
150. International Cricket Association
151. International Federation of Associated Wresting Styles
152. Commonwealth Games Federation
153. Commonwealth Youth Programme (CYP)
154. International Council of Museums (ICOM),France. Membership since: 1979
155. International Council on Archives (ICA), France
156. Fund for the Safeguarding of the Intangible Cultural Heritage
157. World Heritage Fund for the Protection of World Cultural and Natural Heritage, France
158. World Congress for News Agencies
159. World Association of Press Council
160. United Nations World Tourism Organization (UNWTO), Spain
161. International Council for the Study of the Preservation and Restoration of Cultural Properties (ICCROM). Rome, Italy. Membership since: 1956
162. Commonwealth Auditors-General Conference
163. African Organization of supreme Audit Institutions (AFROSAI)
164. Association of African Public Service Commission (AAPSC). Kampala, Uganda
165. Committee of East Central Atlantic Fisheries
166. German International Cooperative
167. International Potato Centre. Lima, Peru
168. Postal Technology Centre (PTC)
169. West African Postal Cooperation (WAPCO)
170. International Post Corporation (IPC)
171. Commonwealth Telecommunication Organization (CTO)
172. Conference of Commonwealth Postal Administration (CCPA)
173. African Telecommunications Union (ATU). West Africa Telecommunication Regulators Assembly (WATRA)
174. Pan-African Postal Union (PAPU)
175. Regional African Satellite Organization (RASCOM)
176. Organization for Economic Cooperation and Development (OECD)
177. Commonwealth of Learning (COL). Canada
178. United Nations Education, Scientific and Cultural Organization (UNESCO), France, through the following: International Institute for Educational Planning (IIEP), International Bureau for Education (IBE), Institute of Lifelong Learning (UIL), Institute for Information Technology Education (IITE), World Federation for UNESCO Clubs and Associations (WFUCUA), World Cultural and Natural Heritage & Safeguarding of the Intangible Cultural Heritage membership since 1960
179. UNESCO Institute for Lifelong Learning (UIL). Germany
180. Islamic Education Scientific and Cultural Organization (ISESCO)
181. World Federation for UNESCO Clubs and Associations (WFUCUA)
182. Global Learning Observations (GLOBE)
183. International Bureau on Education (IBE). Switzerland
184. Convention on the Conservation of Migratory Species of Wild Animals (CMS)
185. MoU on the Conservation of Migratory Sharks
186. International Network for Bamboo and Rattan (INBAR)
187. International Union for Conservation of Nature and Natural Resources (IUCN)
188. United Nations Convention to Combat Desertification (UNCCD)
189. Convention on Biological Diversity (CBD)
190. Cartagena Protocol on Biosafety
191. RAMSAR Convention on Wetland of International Importance
192. Community of Democracies (CD)
193. Group of Fifteen (G15)
194. South Centre
195. Co-Prosperity Alliance Zone (COPAZ)
196. International Bureau of Expositions (BIE)
197. Islamic Centre for Development of Trade (ICDT)
198. Committee for Economic and Commercial Cooperation of the Organization of Islamic Cooperation
199. International Coffee Organization (ICO)
200. International Cotton Advisory Committee(ICAC)
201. African Agricultural Technological Development Foundation (AATF)
202. Research for Life Programme
203. Advanced Simulation and Modelling of Systems Engineering Group
204. International Planetary Society
205. OIC Committee on Scientific and Technological Cooperation
206. International Foundation for Sciences
207. IRENA
208. African Regional Centre for Technology(ARCT)
209. West African Power Pool
210. Centre for Science and Technology of the Non Aligned and other developing Countries
211. International Energy Charter (IECh)
212. UNESCO Bioethics Committees,International Bioethics Committee (IBC) and Intergovernmental Bioethics Committee
213. Borderless Alliance, ACCRA
214. International Road Federation (IRF), Washington DC
215. Port Management Association of West and Central Africa (PMAWCA). Lagos, Nigeria
216. Banjul Accord (BAG)
217. Pan-African Ports Cooperation (PAPC)
218. International Association of Light House Authority (IALA)
219. Sahara and Sahel Observatory (OSS)
220. World Family Organization
221. Economic Community of West Africa States (ECOWAS), Social Affairs & Gender Commission.
222. Commonwealth Legal Services (CLAS)
223. International Council on Museums and Sites(ICOMOS). France. Membership since: 2004
224. Community of Sahelian & Saharan States (CENSAD)
225. Niger Basin Authority (NBA). Niamey, Niger. Membership since 1964
226. International Commission on Irrigation and Drainage (ICID), India
227. Islamic University of Technology, Dhaka
228. Islamic Fiqih Academy
229. Statistical, Economic and Social Research and Training Centre for Islamic Countries, Ankara
230. Research Centre for Islamic History, Arts and Culture (IRCICA)
231. International Federation of Library Associations and Institutions (IFLA)
232. African Association of Remote Sensing of the Environment (AARSE)
233. World Technopolis Association (WTA),Republic of Korea
234. Association of Industrial Science, Innovation and Technology Parks, Hungary
235. International Union of Radio Science (URSI)
236. International Union of Geodesy and Geophysics (IUGG)
237. International Centre for Genetic Engineering & (ICGEB). India
238. Third World Network of Scientific Organization (TWNSO)
239. Third World Organization for Women in Science (TWOWS)
240. Third World Academy of Science (TWAS)
241. Institute of Electrical and Electronics Engineering (IEEE)
242. International (Plant) Genetic Resources Institute (IGRI) (IPGRI)
243. MATLAB Group
244. International Energy Charter (IEC)
245. American Institute of Aeronautics and Astronautics (AIAA)
246. Committee for Data for S&T of the International Council of Scientific Unions (CODATA)
247. Commission on Sci & Tech for Sustainable Dev in the South (COMSATS)
248. United Nations Economic Commission tor Europe (UNECE)(Working Party on Road Transport-Sc 1)
249. Global Shippers’ Forum, Under Union of African Shippers’ Council, London, England
250. The Association of African Aviation Training Organization (AATO)
251. International Federation of Freight Forwarders Associations (FIATA)
252. International Air Cargo Association (TIACA)
253. International Association of Port and Harbours (IAPH)
254. International Association of Dredging Companies (IADC)
255. International Harbour Master Association (IHMA)
256. International Marine Pilot Association (IMPA)
257. Permanent International Association of Navigation Congress (PINANC)
258. Institute of Marine Engineering, Science and Technology (IMAREST)
259. National Institute London (NIL)
260. Sub-Saharan African Transport Policy Programme (SSATP), World Bank
261. International Association of Hydrologists (IAH), Reading, UK
262. International Water Supply Association (IWSA), London, UK
263. International Association of Hydrological Sciences (IAHS)
264. International Federation of Social Workers New York, USA
265. International Association of Schools of Social Work (ASSW), York
266. International Hydrological Programme (IHP) UNESCO, Paris
267. African Ministerial Council on Water Resources (AMCOW), Abuja
268. Association of Southeast Asian Nations (ASEAN), Indonesia
269. Islamic Solidarity Fund, Jedda
270. International Corrections and (ICPA)
271. African Correctional Services Association (ACSA)
272. International Anti-Corruption Academy (IACA), Austria
273. International Social Security Association(ISSA), Joined: 1972
274. Pan-African Productivity Association (PAPA)
275. International Association of Labour Inspection (IALI)
276. Organization of Africa Trade Union Unity (OATUU)
277. Organization of Africa Trade Unions of West Africa (OTUWA)
278. African Association for Public Administration & Management (AAPAM). Nairobi, Kenya
279. Commonwealth Association for Public Administration Management (CAPAM) Canada
280. Commonwealth Local Government Forum (CLGF)
281. Department of International Development (DFID)
282. International Committee of the Red Cross (ICRC)
283. Commonwealth Secretariat, Commonwealth Foundation (CF). London, UK. Membership since: 1949
284. Commonwealth Fund for Tech. Cooperation (CFTC). Membership since: 1949
285. Commonwealth Association for Administration Management (CAPAM)Canada
286. Commonwealth Local Government (CLGF)
287. United Nations Educational, Scientific and Cultural Organization (UNESCO), France. Membership since: 1963
288. UNESCO Bioethics Committees, International Bioethics Committee (IBC) and Intergovernmental Bioethics Committee
289. Organization of Islamic Cooperation (OIC) -General secretariat Jeddah, Saudi Arabia. Membership since: 1975 as observer and1986 as full member.
290. Islamic Corporation for the Development of the Private Sector (ICD)
291. Statistical, Economic and Social Research and Training Centre for Islamic Countries,Ankara
292. Islamic Solidarity Fund, Jeddah

Reference: osgf.gov.ng/storage/app/media/pdf/Internationalorg.pdf

The international organisations that Nigeria is a member, in alphabetical order:

1. Abidjan-Lagos Corridor Organization (ALCO)
2. Advanced Simulation and Modelling of Systems Engineering Group
3. Africa 50
4. Africa Trade Insurance
5. African Agricultural Technological Development Foundation (AATF)
6. African Association for Public Administration & Management (AAPAM). Nairobi, Kenya
7. African Association of Remote Sensing of the Environment (AARSE)
8. African Capacity Building Foundation
9. African Capacity Building Foundation (ACBF) (1991)
10. African Caribbean and Pacific (ACP). Belgium
11. African Correctional Services Association (ACSA)
12. African Development Bank (AfDB)
13. African Development Fund (ADF)
14. African Fertilizer Financing Mechanism(AFFM)
15. African Ministerial Council on Water Resources (AMCOW), Abuja
16. African Organization of supreme Audit Institutions (AFROSAI)
17. African Petroleum Producers Organization (APPO)
18. African Regional Centre for Technology(ARCT)
19. African Telecommunications Union (ATU). West Africa Telecommunication Regulators Assembly (WATRA)
20. African Trade Insurance
21. African Training & Research Centre for Development (CAFRAD)
22. African Union (AU) Peace Fund. Addis Ababa, Ethiopia
23. African Union (AU) Secretariat. Addis Ababa, Ethiopia. Founding Member, 1963
24. African Union Labour and Social Affairs Commission (AU-LSAC). Addis Ababa, Ethiopia. Membership since 1960
25. African Civil Aviation (AFCAC). Dakar, Senegal
26. AFRI-EXIM Bank (1993)
27. Airports Council International (ACI). Montreal, Canada.
28. American Institute of Aeronautics and Astronautics (AIAA)
29. Arms Trade Treaty
30. Association of African Aviation Training Organization (AATO)
31. Association of African Public Service Commission (AAPSC). Kampala, Uganda
32. Association of Industrial Science, Innovation and Technology Parks, Hungary
33. Association of Southeast Asian Nations (ASEAN), Indonesia
34. Banjul Accord (BAG)
35. Banjul Accord Group Aviation Safety Oversight Organization (BAGASOO). Abuja, Nigeria. Membership since 2009
36. Basel Convention on the Control of Hazardous Waste
37. Biological Weapons Convention (BWC). Geneva, Switzerland
38. Borderless Alliance, ACCRA
39. Cartagena Protocol on Biosafety
40. Centre for Science and Technology of the Non Aligned and other developing Countries
41. Chemical Weapons Convention (CWC)/Organization for the Prohibition of Chemical Weapons (OPCW)
42. Cocoa Producers Alliance Nigeria
43. Codex Alimentarius Commission (CAC)
44. Commission on Sci & Tech for Sustainable Dev in the South (COMSATS)
45. Committee for Data for S&T of the International Council of Scientific Unions (CODATA)
46. Committee for Economic and Commercial Cooperation of the Organization of Islamic Cooperation
47. Committee of East Central Atlantic Fisheries
48. Committee on Space Research (COSPAR)
49. Common Fund for Commodities (CFC)
50. Commonwealth Association for Administration Management (CAPAM)Canada
51. Commonwealth Association for Public Administration Management (CAPAM) Canada
52. Commonwealth Auditors-General Conference
53. Commonwealth Foundation (CF). London, UK. Membership since: 1949
54. Commonwealth Fund for Tech. Cooperation (CFTC) Membership since: 1949
55. Commonwealth Fund for Tech. Cooperation (CFTC). Membership since: 1949
56. Commonwealth Games Federation
57. Commonwealth Legal Services (CLAS)
58. Commonwealth Local Government (CLGF)
59. Commonwealth Local Government Forum (CLGF)
60. Commonwealth of Learning (COL). Canada
61. Commonwealth of Nations (Secretariat) UK. Membership since: 1949
62. Commonwealth Secretariat
63. Commonwealth Secretariat, Commonwealth Foundation (CF). London, UK. Membership since: 1949
64. Commonwealth Telecommunication Organization (CTO)
65. Commonwealth Youth Programme (CYP)
66. Community of Democracies (CD)
67. Community of Sahelian & Saharan States (CENSAD)
68. Comprehensive Nuclear Test Ban Treaty Organization (CTBTO)
69. Conference of Commonwealth Postal Administration (CCPA)
70. Consultative Group on International Agricultural Research (CGIAR)
71. Convention on Biological Diversity (CBD)
72. Convention on International Trade in Endangered Species of Wild Fauna and Flora Species (CITES)
73. Convention on the Conservation of Migratory Species of Wild Animals (CMS)
74. Co-Prosperity Alliance Zone (COPAZ)
75. Department of International Development (DFID)
76. Economic Community of West Africa States (ECOWAS), Social Affairs & Gender Commission.
77. Economic Community of West African States(ECOWAS), Abuja, Nigeria. Founding Member, 1975
78. ECOWAS Bank for Investment Development (EBID) (1999)
79. ECOWAS Court of Justice
80. ECOWAS Parliament
81. Federation of International Football Association (FIFA)
82. Food and Agriculture Organization (FAO). Rome, Italy
83. Forum of Federations
84. Fund for the Safeguarding of the Intangible Cultural Heritage
85. Gas Exporting Countries Forum (GECF)
86. German International Cooperative
87. Global Environmental Facility (GEF)
88. Global Fund for HIV/AIDS, Tuberculosis and Malaria (2001)
89. Global Learning Observations (GLOBE)
90. Global Shippers’ Forum, Under Union of African Shippers’ Council, London, England
91. Governmental Advisory Council/lnternational Corporation for Assigned Names & Numbers (ICANN)
92. Group of 77 and China
93. Group of Fifteen (G15)
94. Gulf of Guinea Commission
95. IDEP Institute for Economic Development and Planning
96. IJN Committee on the Peaceful Uses of Outer Space
97. IJN Peacekeeping Operations Budget
98. IJN Women
99. Institute of Electrical and Electronics Engineering (IEEE)
100. Institute of Marine Engineering, Science and Technology (IMAREST)
101. Inter-Agency Committee on Cooperation in Energy Related Research & Development Activities with OPEC Member Countries
102. Inter-Governmental Group of 24 on Financial & Monetary Affairs (G-24)
103. International (Plant) Genetic Resources Institute (IGRI) (IPGRI)
104. International Aids Transparency Initiative (IATI)
105. International Air Cargo Association (TIACA)
106. International Anti-Corruption Academy (IACA), Austria
107. International Association of Dredging Companies (IADC)
108. International Association of Hydrological Sciences (IAHS)
109. International Association of Hydrologists (IAH), Reading, UK
110. International Association of Labour Inspection (IALI)
111. International Association of Light House Authority (IALA)
112. International Association of Port and Harbours (IAPH)
113. International Association of Schools of Social Work (ASSW), York
114. International Astronautical Federation (IAF)
115. International Atomic Energy Agency (IAEA)
116. International Bank for Reconstruction Development (IBRD)
117. International Bureau of Expositions (BIE)
118. International Bureau on Education (IBE). Switzerland
119. International Center for Settlement of Investment Dispute (ICSID)
120. International Centre for Genetic Engineering & (ICGEB). India
121. International Civil Defense Organization (ICDO), Switzerland. Membership since: 2004
122. International Cocoa Organization (ICCO)
123. International Coffee Organization (ICO)
124. International Commission for the Conservation of Atlantic Tunas (ICCAT). Spain
125. International Commission on Irrigation and Drainage (ICID), India
126. International Commission on Large DAM (ICOLD), France
127. International Committee of the Red Cross (ICRC)
128. International Conference of Drug Regulatory Authorities
129. International Cooperative Alliance (ICA). Belgium
130. International Corrections and (ICPA)
131. International Cotton Advisory Committee(ICAC)
132. International Council for the Study of the Preservation and Restoration of Cultural Properties (ICCROM). Rome, Italy. Membership since: 1956
133. International Council of Museums (ICOM),France. Membership since: 1979
134. International Council on Archives (ICA), France
135. International Council on Museums and Sites(ICOMOS). France. Membership since: 2004
136. International Court of Justice (ICJ)
137. International Cricket Association
138. International Criminal Court (ICC) – 1998Rome Statute. The Hague
139. International Development Association (IDA)
140. International Energy Charter (IEC)
141. International Energy Charter (IECh)
142. International Federation of Associated Wresting Styles
143. International Federation of Freight Forwarders Associations (FIATA)
144. International Federation of Library Associations and Institutions (IFLA)
145. International Federation of Social Workers New York, USA
146. International Federation on Ageing (IFA)
147. International Finance Corporation (IFC)
148. International Foundation for Sciences
149. International Fund for Agricultural Development (IFAD). Rome, Italy
150. International Harbour Master Association (IHMA)
151. International Hydrographic (IHO)
152. International Hydrological Organization (IHO). Paris, France
153. International Hydrological Programme (IHP) UNESCO, Paris
154. International Institute for the Unification of Private Law (UNIDROIT). Rome, Italy
155. International Islamic Finance Corporation (ITFC)
156. International Labour Organization (ILO)
157. International Law Development Organization (IDLO)
158. International Marine Pilot Association (IMPA)
159. International Maritime Organization (IMO). London
160. International Maritime Security Organization (IMSO)
161. International Monetary Fund (IMF)
162. International Network for Bamboo and Rattan (INBAR)
163. International Olympic Committee (IOC)
164. International Organization for Migration. (I0M) Switzerland
165. International Planetary Society
166. International Police (INTERPOL)
167. International Post Corporation (IPC)
168. International Potato Centre. Lima, Peru
169. International Road Federation (IRF), Washington DC
170. International Rubber Study Group (IRSG)
171. International Seabed Authority
172. International Social Security Association(ISSA), Joined: 1972
173. International Standard Organization (ISO)
174. International Sugar Organization
175. International Telecommunication Satellite Org. (ITSO) USA
176. International Telecommunications Union (ITU). Switzerland Membership since: 1961
177. International Trademark Association (ITA)
178. International Tribunal for the Law of the Sea (ITLOS)
179. International Tribunals
180. International Tropical Timber Organization(ITTO) Timber Organization (ATO)
181. International Union for Conservation of Nature and Natural Resources (IUCN)
182. International Union of Geodesy and Geophysics (IUGG)
183. International Union of Radio Science (URSI)
184. International Volley Ball Association
185. International Water Supply Association (IWSA), London, UK
186. Internet Governance Forum (IGF). Switzerland
187. IRENA
188. Islamic Centre for Development of Trade (ICDT)
189. Islamic Corporation for Insurance of Investment and Export Credit (ICIEC)
190. Islamic Corporation for the Development of the Private Sector (ICD)
191. Islamic Corporation for the Development of the Private Sector (ICD).
192. Islamic Development Bank (lsDB)
193. Islamic Education Scientific and Cultural Organization (ISESCO)
194. Islamic Fiqih Academy
195. Islamic Solidarity Fund, Jedda
196. Islamic Solidarity Fund, Jeddah
197. Islamic University of Technology, Dhaka
198. Joint Learning Network (JLN). Washington DC, USA
199. Lake Chad Basin Commission (LCBC). N’Djamena, Chad. Membership since 1964
200. Maritime Organization of West and Central Africa (MOWCA)
201. MATLAB Group
202. Mine Ban Treaty (Ottawa Convention)
203. Minimata Convention on Mercury. Membership since: 2013 but Nigeria yet to ratify
204. MoU on the Conservation of Migratory Sharks
205. Multilateral Investment Guarantee Agency (MIGA)
206. Multi-National Joint Task Force (MNJTF), N’djamena, Chad. Founding member since 2015. MDA – MFA/MOD/ONSA
207. National Institute London (NIL)
208. New Partnership for Africa’s Development (NEPAD)
209. Niger Basin Authority (NBA). Niamey, Niger. Membership since 1964
210. Non-Aligned Movement (NAM) Coordinating Bureau
211. OIC Committee on Scientific and Technological Cooperation
212. OPEC Fund for International Development (OFID)
213. Organization for Economic Cooperation and Development (OECD)
214. Organization for Economic Cooperation and Development (OECD). France
215. Organization for Economic Cooperation of Countries
216. Organization of Africa Trade Union Unity (OATUU)
217. Organization of Africa Trade Unions of West Africa (OTUWA)
218. Organization of Islamic Cooperation (OIC) – General secretariat Jeddah, Saudi Arabia. Membership since: 1975 as observer and 1986 as full member
219. Organization of Islamic Cooperation (OIC) -General secretariat Jeddah, Saudi Arabia. Membership since: 1975 as observer and1986 as full member.
220. Organization of Petroleum Exporting Countries (OPEC)
221. Pan African Parliament (PAP). Midrand, South Africa. Membership since 2004
222. Pan-African Ports Cooperation (PAPC)
223. Pan-African Postal Union (PAPU)
224. Pan-African Productivity Association (PAPA)
225. Permanent Court of Arbitration (PCA). The Netherlands
226. Permanent International Association of Navigation Congress (PINANC)
227. Pharmaceutical Inspection Cooperation/Scheme (PIC/S)
228. Pharmaco Vigilance Uppsala Monitoring Centre. Sweden
229. Port Management Association of West and Central Africa (PMAWCA). Lagos, Nigeria
230. Postal Technology Centre (PTC)
231. RAMSAR Convention on Wetland of International Importance
232. Regional African Satellite Organization (RASCOM)
233. Research Centre for Islamic History, Arts and Culture (IRCICA)
234. Research for Life Programme
235. Rotterdam Convention on the Prior Informed Consent Procedure for Certain Hazardous Chemicals and Pesticides in International Trade
236. Sahara and Sahel Observatory (OSS)
237. Shelter-Afrique (1982)
238. South – South Cooperation (SSC) /Partners in Population and Development (PPD)
239. South Centre
240. Statistical, Economic and Social Research and Training Centre for Islamic Countries, Ankara
241. Statistical, Economic and Social Research and Training Centre for Islamic Countries,Ankara
242. Stockholm Convention on Persistent Organic Pollutants Switzerland. Membership since: 2004
243. Strategic Approach to International Chemical Management (SAICM)
244. Sub-Saharan African Transport Policy Programme (SSATP), World Bank
245. Third World Academy of Science (TWAS)
246. Third World Network of Scientific Organization (TWNSO)
247. Third World Organization for Women in Science (TWOWS)
248. UN Industrial Development Organization (UNDO) Austria;Membership since: 1973
249. UNESCO Bioethics Committees, International Bioethics Committee (IBC) and Intergovernmental Bioethics Committee
250. UNESCO Bioethics Committees,International Bioethics Committee (IBC) and Intergovernmental Bioethics Committee
251. UNESCO Institute for Lifelong Learning (UIL). Germany
252. Union of African Shippers Council (UASC)
253. United Nations
254. United Nations Children’s Fund (UNICEF)
255. United Nations Conference on Trade and Development (UNCTAD)
256. United Nations Convention to Combat Desertification (UNCCD)
257. United Nations Development Programme (UNDP)
258. United Nations Economic Commission tor Europe (UNECE)(Working Party on Road Transport-Sc 1)
259. United Nations Education, Scientific and Cultural Organization (UNESCO), France, through the following: International Institute for Educational Planning (IIEP), International Bureau for Education (IBE), Institute of Lifelong Learning (UIL), Institute for Information Technology Education (IITE), World Federation for UNESCO Clubs and Associations (WFUCUA), World Cultural and Natural Heritage & Safeguarding of the Intangible Cultural Heritage membership since 1960
260. United Nations Educational, Scientific and Cultural Organization (UNESCO), France. Membership since: 1963
261. United Nations Educational, Scientific and Cultural Organization (UNESCO). France. Membership since: 1963
262. United Nations Environment Programme (UNEP)
263. United Nations Forum on Forest (UNFF) International Agreement on Forest (IAF) UN Headquarters, New York.
264. United Nations Framework Convention on Climate Change (UNFCCC)
265. United Nations Human Settlements Programme (UN Habitat)
266. United Nations Institute for Training and Research (UNITAR)
267. United Nations Interrogation Crime and Justice Research Institute (UNICRI)
268. United Nations Office on Drugs and Crime (UNODC)
269. United Nations Population Fund (UNFPA). New York, USA. Membership since: 1969
270. United Nations Programme on HIV/AIDS (UNAIDS)
271. United Nations World Tourism Organization (UNWTO), Spain
272. Universal Postal Union, Switzerland. Membership since: 1961
273. Vienna Convention to phase out Ozone depleting substances/Montreal Protocol on Substances that deplete the Ozone Layer.
274. West African Postal Cooperation (WAPCO)
275. West African Power Pool
276. WHO Programme on Framework Convention on Tobacco Control (FCTC)
277. WHO Special Programme on Tropical Diseases Research (TDR) Training
278. World Anti-counterfeit Congress
279. World Association of Press Council
280. World Congress for News Agencies
281. World Custom Organization
282. World Customs Organization
283. World Family Organization
284. World Federation for UNESCO Clubs and Associations (WFUCUA)
285. World Food Programme (WFP). Rome, Italy
286. World Health Organization (WHO). Geneva, Switzerland. Membership
287. World Heritage Fund for the Protection of World Cultural and Natural Heritage, France
288. World Intellectual Property Organization (WIPO)
289. World Meteorological Organization (WMO). Geneva, Switzerland
290. World Organization for Animal Health (OIE). Paris, France
291. World Technopolis Association (WTA),Republic of Korea
292. World Trade Organization (WTO)

Nigerian foreign policy amd its relations with other countries and international prganisations since independence in 1960 has been characterised by a focus on Africa and to several fundamental principles: African unity and economic independence; capability to exercise super influence in the region; peaceful settlement of disputes; non-alignment and non-intentional interference in the internal affairs of other nations; and regional economic cooperation and development.

In the execution of it foreign policies, Nigeria participates in the African Union, the Economic Community of West African States (ECOWAS), the Non-Aligned Movement, the Commonwealth of Nations, the United Nations among other organisations.

Nigeria is a country in Africa, a regional power on the continent and an emerging power on the international scene.

It has 36 states and a Federal Capital Territory, Abuja.

Having being divided into states, the country is further divided into 774 Local Government Areas (LGAs).

The LGAs are under the control of their respective states.

The country has the largest economy in Africa.

Nigeria’s population is over 230 million, making it number 1 most populated country in Africa, and number 6 in the world.

It covers an area of 923,769 square kilometres (356,669 sq mi).

It is situated between the Sahel to the north and the Gulf of Guinea to the south in the Atlantic Ocean.

Nigeria borders Niger in the north, Chad in the northeast, Cameroon in the east, and Benin in the west.

It is often referred to as the Giant of Africa owing to its large population and economy and is considered to be an emerging market by the World Bank.

However, the country ranks very low in the Human Development Index and remains one of the most corrupt nations in the world.

The largest city in Nigeria is Lagos, one of the largest metropolitan areas in the world and the largest in Africa.

Nigeria is a multinational state inhabited by more than 250 ethnic groups speaking 500 distinct languages, all identifying with a wide variety of cultures.

The official language is English, chosen to facilitate linguistic unity at the national level.

Nigeria is a founding member of AU (African Union) and a member of other international organizations including UN (United Nations), Commonwealth of Nations and ECOWAS (Economic Community of West African States).