Two submarines of the British Royal Navy have been named HMS Tireless:
- HMS Tireless (P327) was a Taciturn- or T-class submarine that served during the Cold War
- HMS Tireless (S88) is a Trafalgar-class submarine, decommissioned on 19 June 2014
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.