77th Regiment may refer to:
77th Regiment of Foot (disambiguation), British Army 77th Armor Regiment, United States Army 77th Field Artillery Regiment, United States Army 77th Infantry Regiment (France), French Army 77th Heavy Anti-Aircraft Regiment (disambiguation), British Army 77th Searchlight Regiment, Royal Artillery, British Army 77th (Duke of Lancaster's Own Yeomanry) Medium Regiment, Royal Artillery, British Army
American Civil War regiments 77th Illinois Infantry Regiment 77th New York Infantry Regiment 77th Ohio Infantry Regiment 77th Pennsylvania Infantry Regiment
See also 77th Brigade (disambiguation) 77th Division (disambiguation)