| 2 April 1851 |
16 December 1851 |
Treaty between Great Britain and New Granada, for the Suppression of the Slave Trade |
| 11 September 1875 |
|
Postal Agreement between Great Britain and the United States of Colombia |
| 2 October 1887 |
1 March 1888 |
Convention with the Ministry of the Interior of the Republic of Colombia for the exchange of postal parcels, with Detailed Regulations |
| 27 October 1888 |
16 December 1899 |
Treaty between Great Britain and Colombia, for the Mutual Surrender of Fugitive Criminals |
| 22 December 1906 |
|
Convention between the United Kingdom and Colombia respecting Industrial Property |
| 30 December 1908 |
|
Agreement between the United Kingdom and Colombia providing for the Settlement by Arbitration of Certain Classes of Questions which may arise between the Two Governments |
| 11 December 1909 |
|
Agreement between Great Britain and Colombia extending the Extradition Treaty of 27 October 1888 to Bechuanaland Protectorate, East Africa Protectorate, Gambia Protectorate, N.E.Rhodesia, N.W.Rhodesia, N.Nigeria, Northern territories of the Gold Coast, Nyasaland, Sierra Leone Protectorate, S.Nigeria Protectorate, S. Rhodesia, Swaziland and the Uganda Protectorate. |
| 20 August 1912 |
20 August 1912 |
Protocol between the United Kingdom and Colombia respecting the Application of the Treaty of Commerce of February 16, 1866, to Certain Parts of His Britannic Majesty's Dominions |
| 6 March 1923 |
|
Exchange of Notes between Great Britain and Colombia relative to the Importation from Great Britain into Colombia of Opium and similar Drugs |
| 2 December 1929 |
5 December 1930 |
Convention between His Majesty in Respect of the United Kingdom, the Commonwealth of Australia, New Zealand and the Union of South Africa and the President of Colombia supplementary to the Treaty of October 27, 1888 in regard to Extradition |
| 20 February 1946 |
|
Agreement between Canada and Colombia regarding Trade |
| 16 October 1947 |
4 September 1952 |
Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Colombia for Air Services between and beyond their respective Territories [with Exchange of Notes] |
| 13 December 1949 |
1 May 1950 |
Money Order Agreement between the Postal Administration of Great Britain and Northern Ireland and the Postal Administration of the Republic of Colombia (with appendices). |
| 26 May 1961 |
25 June 1961 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Colombia regarding the Reciprocal Abolition of Visas |
| 12 December 1968 |
18 December 1968 |
Exchange of Notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Republic of Colombia amending Schedules I and II of the Annex to the Air Services Agreement signed at Bogota on 16 October 1947 |