Major

Major is a common rank both in the Covenant and the UNSC. "Major" may refer to:

Covenant

 * Major Grunts, red armored Gruntss
 * Major Brutes, armored Brutes of Halo 2
 * Major Jackals, orange armored/shielded Jackals
 * Major Elites, red armored Elites
 * Drone Majors, a Drone rank in Halo 3

UNSC

 * Major, commissioned officer rank of the UNSC Marine Corps and UNSC Army
 * Major General, 3rd highest rank in the UNSC Marine Corps and UNSC Army
 * Major (Halo 3), a rank in Halo 3

Forerunner

 * Sentinel Majors, gold-plated Sentinel constructs with shields