The 45th (Nottinghamshire) (Sherwood Foresters) Regiment of Foot was a British Army line infantry regiment, raised in 1741. The regiment saw action during Father Le Loutre's War, the French and Indian War and the American Revolutionary War as well as the Peninsular War, the First Anglo-Burmese War and the Xhosa Wars. Under the Childers Reforms it amalgamated with the 95th (Derbyshire) Regiment of Foot to form the Sherwood Foresters (Nottinghamshire and Derbyshire Regiment) in 1881.