| 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 |
| 22 December 1931 |
24 June 1935 |
Extradition Treaty between His Majesty, in respect of the United Kingdom, and the President of the United States of America |
| 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 |
| 29 May 1939 |
3 November 1949 |
Convention between His Majesty in respect of the United Kingdom and the Grand Duchess of Luxembourg amending the Treaty of 24 November 1880 regarding Extradition |