The following is a list of United States military campaigns during World War II. These were defined by the US Army, although they were Allied campaigns. Other Allied countries may have named them differently.
European Theater of Operations
- Algeria-French Morocco (November 8–11, 1942)
- Anzio (January 22 – May 24, 1944)
- Ardennes-Alsace (December 16, 1944 – January 25, 1945) — "Battle of the Bulge"
- Central Europe (March 22 – May 11, 1945)
- Egypt-Libya (June 11, 1942 – February 12, 1943)
- Naples-Foggia Campaign
- Lorraine (September 1 – December 18, 1944)
- Normandy (June 6 – July 24, 1944)
- North Apennines Campaign
- Northern France (July 25 – September 14, 1944)
- Rhineland (September 15, 1944 – March 21, 1945)
- Rome-Arno (January 22 – September 9, 1944)
- Sicily (July 9 – August 17, 1943)
- Southern France (August 15 – September 14, 1944)
- Tunisia (November 17, 1942 – May 13, 1943)
Pacific Theater of Operations
- Air Offensive Japan (April 17, 1942 – September 2, 1945)
- Central Pacific (November 7, 1943 – January 31, 1944)
- Eastern Mandates (January 31 – June 14, 1944)
- Guadalcanal (August 7, 1942 – February 21, 1943)
- Leyte (October 17 – July 1, 1945)
- Luzon (December 15, 1944 – July 4, 1945)
- New Guinea (January 24, 1943 – December 31, 1944)
- Northern Solomons (February 22, 1943 – November 21, 1944)
- Papua (July 23, 1942 – January 23, 1943)
- Pearl Harbor (December 7, 1941)
- Philippine Islands (December 7, 1941 – May 10, 1942)
- Ryukyus / Okinawa (March 26 – July 2, 1945)
- Southern Philippines (February 27 – July 4, 1945)
- Western Pacific (January 15 – September 2, 1945)