MacGyver
Macha (Irish Goddess)
Machete
Machiavelli
Macho
Machts Nichts
Macintosh
Mack
Mackdoodles
MacKenzie
Mackerel
Mackie
Macko
Mackroll
Macky Kat
Macky-Wacky
Macleay
Macmillan
Maco
Macpherson
MacTabby
MacTavish
Macuilxochitl (Aztec mythology: the god of music and dance)
Macusa (after the first girlfriend of Compay Segundo)
Macushla (Irish for "my darling")
Macy
Maćka
Mad Cat
Mad Dog
Mad Max