HMS H24 was a British H class submarine built by Vickers Limited, Barrow-in-Furness, as part of the Batch 3 H class submarines. She was laid down on 13 November 1917 and was commissioned on 30 April 1918. H24 was rammed by HMS Vancouver in July 1922 badly damaging her conning tower. HMS H24 was sold on 4 May 1934 in Sunderland.