What is master chiefs name?

Answer 1

Master Chief's name is John-117. 117 is his service tag.
In the last level when master chief and the arbiter are trying to survive.. And master chief gets hit with a warthog. He climbs up to the thing that cortana was standing on he lays back on it. Then cortana says his name but she says it really quietly she says " It's been an honor serving u Jon You really have to listen. end it again and try to here what she says.

AT the end of the game Cortana says how its been an honor serving john 117(a.k.a Master Cheif)

If you've gotten all the skulls including the silver ones if you turn on the fourth silver skull you will be able to see his name in the John 117 monument ad.

To visit the John 117 Monument got to bungie.net or Xbox. com for further details

Answer 2

Master chief's real name is John 117.