| Post: | High Commissioner of Sri Lanka to the United Kingdom |
| Insignia: | Emblem of Sri Lanka.svg |
| Insigniasize: | 80 |
| Insigniacaption: | Emblem of Sri Lanka |
| Reports To: | Minister of Foreign Affairs |
| Termlength: | No fixed term |
| Incumbent: | Saroja Sirisena |
| Incumbentsince: | 2 March 2020 |
| Nominator: | The President of Sri Lanka |
| Department: | Ministry of Foreign Affairs |
| Seat: | Sri Lankan High Commission, 13 Hyde Park Gardens, London, United Kingdom |
| Inaugural: | Sir Claude Corea (As Representative of the Government of Ceylon) |
The Sri Lankan High Commissioner to the United Kingdom is the Sri Lankan envoy to United Kingdom. Countries belonging to the Commonwealth of Nations typically exchange High Commissioners, rather than Ambassadors. Though there are a few technical differences (for instance, whereas Ambassadors present their diplomatic credentials to the host country's head of state, High Commissioners are accredited to the head of government), they are in practice one and the same office. The Sri Lankan High Commissioner to the United Kingdom is concurrently accredited as the Ambassador to the Republic of Ireland. The current post of High Commissioner is occupied by Saroja Sirisena.
| High Commissioner | Start of Term | End of Term | |
|---|---|---|---|
| Claude Corea | 1948 | 1949 | |
| 1949 | 1952 | ||
| 1952 | 1954 | ||
| February 1954 | December 1957 | ||
| Gunasena de Soyza, CMG, OBE | December 1957 | October 1958 | |
| P. R. Gunasekera | October 1958 | February 1960 | |
| Gunasena de Soyza, CMG, OBE | February 1960 | October 1961 | |
| Sir Senerat Gunewardene, KBE | October 1961 | June 1963 | |
| Professor Gunapala Malalasekera, OBE | June 1963 | February 1967 | |
| Sir Lalitha Rajapakse, QC | February 1967 | October 1969 | |
| M. V. P. Peiris, OBE | October 1969 | December 1970 | |
| December 1970 | 1975 - Last High Commissioner from the Dominion of Ceylon (1970-72), and the first High Commissioner from Sri Lanka (1972-75). | ||
| 1975 | 1977 | ||
| 1977 | January 1981 | ||
| January 1981 | May 1984 | ||
| May 1984 | March 1990 | ||
| General Sepala Attygalle, LVO | 1990 | August 1993 | |
| August 1993 | February 1995 | ||
| February 1995 | January 1999 | ||
| January 1999 | July 2000 | ||
| July 2000 | April 2002 | ||
| Faiz Mustapha, PC | April 2002 | February 2005 | |
| February 2005 | May 2008 | ||
| May 2008 | 31 December 2010 | ||
| Dr Chris Nonis[1] [2] | 1 September 2011 | 20 October 2014 | |
| Sugeeshwara Gunaratna (Acting)[3] | 21 October 2014 | 14 November 2016 | |
| Amari Mandika Wijewardane[4] | 15 November 2016 | 1 April 2018 | |
| Sugeeshwara Gunaratna (Acting)[5] | 1 April 2018 | 20 February 2019 | |
| Manisha Gunasekara[6] | 20 February 2019 | 31 January 2020 | |
| 02 March 2020 | |||
| 19 November 2023 |