Pacific Theatre or Pacific Theater may refer to:
Theatres of war
World War II
- Asiatic-Pacific theater, the theatre of operations of US forces in the Pacific War
- China Burma India theater, the U.S. Army and U.S. Navy designation for the China and Southeast Asian theatres
- Pacific Ocean theater of World War II
- Asia-Pacific War, the theatre of World War II that was fought in the Pacific and Asia
Other wars
- Asian and Pacific theatre of World War I
- Pacific Ocean theater, a theater of operations during the Spanish–American War
Other uses
- Pacific Theatres, an American chain of movie theatre in the Los Angeles metropolitan area of California
- P.T.O. (video game) (Pacific Theatre of Operations), a 1989 video game developed and published by Koei