Oklahoma is a state in the United States of America. Oklahoma may also refer to:

University of Oklahoma

Oklahoma!, a 1943 Rodgers and Hammerstein musical comedy

Oklahoma City, Oklahoma, United States

Oklahoma State University

Oklahoma Territory, an organized territory (1890-1907) that would become part of the state

Oklahoma! (film)

USS Oklahoma (BB-37), an American naval warship

Ed Ferrara or Oklahoma, a professional wrestling writer

Oklahoma, Pennsylvania, United States

Oklahoma! (soundrack)

"Oklahoma!" (song), the musical's theme song and the state of Oklahoma's official song

Oklahoma (1979 film)