109th Regiment

109th Regiment may refer to:

• 109th Regiment of Foot (disambiguation), British Army regiments
• 109th Infantry Regiment (United States)
• 109th Field Artillery Regiment
• 109th Regiment Royal Armoured Corps
• 109th Bomber Aviation Regiment
• 109th Field Regiment, Royal Artillery
• 109th (Royal Sussex Regiment) Light Anti-Aircraft Regiment, Royal Artillery

American Civil War regiments

• 109th Illinois Infantry Regiment
• 109th New York Infantry Regiment
• 109th Pennsylvania Infantry Regiment

See also

• 109th Brigade (disambiguation)
• 109th Division (disambiguation)