HMS St Vincent was a shore establishment of the Royal Navy, located in Gosport, Hampshire.

The name was given to the Forton Barracks site in Gosport in 1927, after the one that been set up aboard the old first rate HMS St Vincent in 1862.

The new HMS St Vincent was commissioned on 1 June 1927, originally like its predecessor as a training establishment for boys and juniors.

HMS St Vincent meanwhile became a training establishment for officers of the Fleet Air Arm and an overflow for the Royal Navy barracks.

St Vincent reverted to being a boy's training establishment after the end of the war, and reopened as such on 1 December 1945.