The 54th Regiment of Foot was an infantry regiment of the British Army.
Originally formed in 1755 as the 56th Regiment of Foot it was renumbered as the 54th when the 50th Regiment and 51st Regiment were disbanded. It was renamed as 54th (West Norfolk) Regiment of Foot on 31 August 1782. As part of the Childers Reforms it was united with the 39th (Dorsetshire) Regiment of Foot, to form The Dorsetshire Regiment in 1881.
During the American Revolution, the 54th Regiment assaulted Fort Griswold in Groton, Connecticut on September 6, 1781 in the Battle of Groton Heights. The battle resulted in almost 80 American soldiers being massacred by the British after the American commander, Lieutenant Colonel William Ledyard, had surrendered.