| 5 February 1908 |
|
Agreement between Postal Administrations of Southern Nigeria and German Protectorates of Western Africa respecting Exchange of Money Orders |
| 9 December 1942 |
9 March 1943 |
Treaty between Nigeria and Spanish Guinea Regarding Recruitment of Labour in Nigeria for Employment in Spanish Guinea |
| 1 January 1957 |
|
Exchange of Notes concerning an Agreement with Nigeria about Road Transport |
| 14 January 1959 |
|
Agreement between the United Kingdom of Great Britain and Northern Ireland and the International Labour Organisation concerning the establishment of an African Field Office in Lagos |
| 19 October 1960 |
19 October 1960 |
Communications - Tracking Station in Nigeria |
| 5 January 1961 |
|
Proposed Defence Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Federation of Nigeria |
| 29 May 1961 |
1 June 1961 |
Exchange of Letters between the Government of the United Kingdom and Nigeria on incorporating the Northern Cameroons into the Federation of Nigeria |
| 15 December 1964 |
|
Letters of Intention of the Board of Trade for ECGD to be known as the United Kingdom/Nigeria (Telecommunications) Credit Agreement 1964 |
| 24 September 1968 |
25 September 1968 |
Exchanges of Notes and Letters concerning the Guarantee by the United Kingdom and the Maintenance of the Minimum Sterling Proportion by certain Overseas Sterling Area Governments |
| 25 February 1969 |
|
Exchange of Letters of Intention and Amendment concerning the United Kingdom/Nigeria Loan 1969 |
| 26 June 1969 |
26 June 1969 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Federal Republic of Nigeria concerning the provision of a British Training Team to assist in the Training and Development of the Naval Forces of Nigeria |