HMS Ascot was a Racecourse-class minesweeper of the Royal Navy. The Racecourse class comprised 32 paddlewheel coastal minesweeping sloops.

Ascot was the last ship to be sunk in the First World War on 10 November 1918, the day before the announcement of the armistice. She was torpedoed by UB-67 off the Farne Islands.

The wreckage lies at a depth of 60 metres (200 ft), at 55°37′9.24″N 001°29′8.60″W / 55.6192333°N 1.4857222°W / 55.6192333; -1.4857222.

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.

• Memorial dive report