Master Chief is most definitely male. In the games, his voice is clearly male, and he is always referred to as male. In addition, the official backstory has him being a boy named "John" prior to him being selected to become a Spartan.
Master Chief is a rank not a name, in the halo trilogy the main character is a spartan by the name of John-117 who is a male, but there are female master chiefs.
master chief is totaly NOT A GIRL.OfcnStupid person
No ok first thing of all master chief is a girl!
Master Chief is a male.
it is a rank in the spartan army and John (master chief) is not only the last spartan but he is also the only master chief
Master Chief is a Master Chief in the UNSC (A fictional branch of the military) and is the highest enlisted rank attainable.
master chief is totaly NOT A GIRL.OfcnStupid person
No ok first thing of all master chief is a girl!
Apparently he sounds like a girl for a while in the show, but is a boy.
If you asked "is halo a girl" then no, it is a huge ring which master chief crashs on to and it is a destructive super weapon which the covenet try to destroy the universe with but fail because master chief blows it up. Master Cheif rules =)
MIss
Chief Powhatan of the Tsenacommacah Native American Tribe was a male (boy).
No. Master chief, has no relatives or known parents. He is abducted as a young boy to be trained and engineered into a Spartan. He doesn't even remember any siblings or relatives at all.
Master Chief is a male.
Arbiter joins master chief in halo 3 to fight the flood
master chief
Master Chief.
master chief !!