98th Regiment may refer to:
98th Regiment of Foot (disambiguation), various units of the British Army 98th Ahir Infantry, a unit of the British Indian Army 98th Cavalry Regiment, United States Army 98th Heavy Anti-Aircraft Regiment, Royal Artillery
American Civil War regiments 98th Illinois Infantry Regiment 98th Indiana Infantry Regiment 98th New York Infantry Regiment 98th Ohio Infantry Regiment 98th Pennsylvania Infantry Regiment
See also 98th Brigade (disambiguation) 98th Division (disambiguation) 98 Squadron (disambiguation)