Major

The rank of major may refer to:
 * Zero, real name David Oh, the former commander of the FOX Unit, who held the rank of major during his command of the FOX unit up to its disbandment.
 * Ivan Raidenovitch Raikov, a GRU officer who held the rank of major until he was stripped of his rank after the events of Operation Snake Eater
 * Revolver Ocelot, a Russian soldier who held the rank of major during the 1960s while leading the Ocelot unit.
 * Richard Ames, a DIA agent (and secretly an agent of the Patriots), who held the rank of major until his promotion to colonel after the events of the 2005 Shadow Moses Incident for his role in the event.