A quick trip to Wikipedia would have given you the answer in under 10 seconds... Mishikinaakwawas his real name.
Wahunsenacawh
Master Chief Petty Officer John-117, his name is John
titus cortaz
petty officer john.
Albert johnson
Yes, Master Chief's real name is John and his Spartan designation is 117.
His real name is Ben Stiller
boogertee1 summers real name is summer
Little Boogeymans real name is Martin Wright.
Yes his real name is Leo Hoawrd. He played as Leo Little on Leo Little's big show, but his real name is Leo Howard.
you are playing as master chief or his real name john
john forge Master Chief's name is John Forge in Halo:Wars he Sergant John Forge.