49th Regiment or 49th Infantry Regiment may refer to:

• 49th Hutsul Rifle Regiment, a unit of the Polish Army
• 49th (Princess Charlotte of Wales's) (Hertfordshire) Regiment of Foot, a unit of the British Army
• 49th Royal Tank Regiment, a unit of the British Army
• 49th Field Artillery Regiment, RCA, a unit of the Canadian Army
• The Hastings and Prince Edward Regiment, a unit of the Canadian Army
• 49th Field Artillery Regiment (United States), a unit of the US Army
• 49th Infantry Regiment (United States), a unit of the US Army
• 49th Regiment of Bengal Native Infantry, a unit of the East India Company's Bengal Army

American Civil War regiments

Union (Northern) Army

• 49th Regiment Kentucky Volunteer Mounted Infantry
• 49th Illinois Volunteer Infantry Regiment
• 49th Wisconsin Volunteer Infantry Regiment
• 49th Indiana Infantry Regiment
• 49th New York Volunteer Infantry
• 49th Ohio Infantry
• 49th Pennsylvania Infantry

Confederate (Southern) Army

• 49th North Carolina Infantry
• 49th Virginia Infantry

• 49th Division (disambiguation)
• 49th Brigade (disambiguation)
• 49th Squadron (disambiguation)

Topics referred to by the same term

This disambiguation page lists articles about military units and formations which are associated with the same title.
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