12 O'Clock High is an American military drama television series set in World War II. It was originally broadcast on ABC-TV for two-and-one-half TV seasons from September 1964 through January 1967 and was based on the 1949 film of the same name. The series was a co-production of 20th Century Fox Television and QM Productions. This show is one of the two QM shows not to display a copyright notice at the beginning, but rather at the end and the only one not to display the standard "A QM Production" closing card on the closing credits.

Twelve O'Clock High is a 1949 American war film directed by Henry King and based on the novel of the same name by Sy Bartlett and Beirne Lay, Jr. It stars Gregory Peck as Brig. General Frank Savage. Hugh Marlowe, Gary Merrill, Millard Mitchell, and Dean Jagger also appear in supporting roles.