The ambassador of the Republic of the Philippines to the United Kingdom (Filipino: Sugo ng Republika ng Pilipinas sa Reyno Unido ng Dakilang Britanya at Hilagang Irlanda), known formally in the United Kingdom as the ambassador of the Republic of the Philippines to the Court of St James's, is the Republic of the Philippines' foremost diplomatic representative in the United Kingdom.

As head of the Philippines' diplomatic mission there, the ambassador is the official representative of the president and the government of the Philippines to the king and government of the United Kingdom of Great Britain and Northern Ireland.

The position has the rank and status of an ambassador extraordinary and plenipotentiary and is based at the embassy at 6-11 Suffolk Street, London, United Kingdom.

The position is currently held by former Secretary of Foreign Affairs Teodoro Locsin Jr. since August 30, 2022, of whom he presented his credentials to King Charles III on May 16, 2023.

The two countries were previously fought on the same side under the Allied Powers during the Second World War.