HMS Tudor was a British submarine of the third group of the T class.

During the war Tudor was adopted by the Borough of Bridgend as part of Warship Week.

The plaque from this adoption is held by the National Museum of the Royal Navy in Portsmouth.

On 23 April 1949, Tudor arrived at Halifax, Nova Scotia to begin a three-month tour in Canadian waters helping train Canadian surface vessels in anti-submarine warfare.

[2] Tudor returned to the UK in July 1949, relieved by HMS Tally-Ho.