| 4 June 1878 |
9 December 1878 |
Treaty between Great Britain and Spain for the Mutual Surrender of Fugitive Criminals |
| 24 November 1880 |
15 March 1881 |
Treaty between Great Britain and Luxemburg, for the Mutual Surrender of Fugitive Criminals |
| 26 November 1880 |
30 May 1881 |
Treaty between Great Britain and Switzerland, for the Mutual Surrender of Fugitive Criminals |
| 19 February 1889 |
10 June 1889 |
Declaration between Great Britain and Spain, amending the Treaty of the 4th June, 1878, for the Extradition of Fugitive Criminals |
| 17 October 1892 |
19 March 1894 |
Treaty between Great Britain and Portugal for the mutual surrender of fugitive criminals |
| 26 September 1898 |
14 March 1899 |
Treaty between the United Kingdom and the Netherlands for the Mutual Surrender of Fugitive Criminals |
| 16 October 1899 |
10 March 1900 |
Treaty between the United Kingdom and the Republic of San Marino for the Mutual Extradition of Fugitive Criminals |
| 29 June 1904 |
29 March 1905 |
Convention between the United Kingdom and Switzerland supplementing Article XVIII of the Treaty of Extradition of November 26, 1880 |
| 4 March 1911 |
24 November 1911 |
Treaty between the United Kingdom and Siam respecting the Extradition of Fugitive Criminals |
| 30 May 1924 |
23 May 1925 |
Treaty between the United Kingdom and Finland for the Extradition of Criminals |
| 16 July 1924 |
30 October 1925 |
Treaty between the United Kingdom and the Latvian Republic for the Extradition of Fugitive Criminals |
| 11 November 1924 |
5 November 1926 |
Treaty between the United Kingdom and the Czechoslovak Republic for the Extradition of Criminals signed at London, November 11, 1924, and Protocol signed at London , June 4, 1926 |
| 23 September 1927 |
|
Exchange of Notes concerning Commercial Relations with South Africa, New Zealand, Western Samoa concerning Treatment of Goods |
| 5 December 1927 |
23 January 1928 |
Extension of Extradition Treaty of December 3 1873 to British Mandated Territories [with Austria] |
| 30 December 1927 |
|
Exchange of Notes between the United Kingdom and Panama concerning extension of Extradition Treaty of 25 August 1906 to British Mandated Territories |
| 5 January 1928 |
27 February 1928 |
Exchange of Notes Extending the Extradition Treaty of 4 March 1911 to British Mandated Territories |
| 12 January 1929 |
|
Extension of Extradition Treaty signed at Bucharest, March 21,1893, to Mandated Territories |
| 20 January 1932 |
10 July 1933 |
Convention between His Majesty, in respect of the United Kingdom, Australia, New Zealand, South Africa and India and the President of the Portuguese Republic Supplementary to the Extradition Treaty of October 17, 1892 With Exchange of Notes |
| 19 December 1934 |
6 September 1935 |
Convention between His Majesty in respect of the United Kingdom and the Swiss Federal Council Supplementary to the Convention of November 26, 1880 regarding Extradition |
| 15 October 1935 |
30 June 1936 |
Convention between His Majesty in respect of the United Kingdom and His Majesty the King of Denmark and Iceland in respect of Denmark Supplementary to the Treaty of March 31, 1873 regarding Extradition |
| 18 September 1936 |
13 October 1937 |
Treaty between His Majesty in respect of the United Kingdom and His Serene Highness the Regent of Hungary Supplementary to the Treaty of December 3, 1873, regarding Extradition |
| 8 January 1940 |
8 February 1940 |
Exchange of Notes between His Majesty's Governments in the United Kingdom, the Commonwealth of Australia and New Zealand, and the Government of India and the Portuguese Government respecting Documents of Identity for Aircraft Personnel |
| 18 August 1964 |
7 November 1964 |
Agreement with New Zealand (in respect of New Zealand's Island Territories, UK (in respect of Fiji, Western Pacific High Commission and Tonga) and Western Samoa for the continued operation of a South Pacific Health Service |