Captain

Captain may refer to the following:

UNSC

 * Captain (Marine Corps) - The highest company-grade officer rank in the UNSC Marine Corps, usually in charge of a Company of Marines.
 * Captain (Navy) - A senior officer rating in the UNSC Navy, usually in charge of larger ships.
 * Captain (Army) - The highest company-grade officer rank in the UNSC Army, usually in charge of a Company of Soldiers.

Jiralhanae

 * Brute Captain - the lowest of the Captain ranks, clad in violet armor.
 * Brute Captain Major - the second rank, with typical golden armor.
 * Brute Captain Ultra - the highest Captain rank, defined by cyan armor.

Real world

 * Captain - The second officer rank on Halo 3 multiplayer.
 * Captain - A rank in Halo: Reach.