malki - malkam - malkiel - malkiya - etc.
maoz - maozya - maazya - etc.
matan - matanya - matanel - etc.
matthew - mattathias - matityahu - matt
meged
meir - meyer - meiri - etc.
menachem - menucham - meni - etc.
meron
micah - michaya - michayahu - etc.
michael - mikel - miki - muki - etc.
mordechai
moses - moshe
more M names - hebrew - ma
more M names - hebrew - me
more M names - hebrew - mi
more M names - hebrew - mo
more M names - hebrew - mu
more M names - non-hebrew - ma
more M names - non-hebrew - me
more M names - non-hebrew - mi
more M names - non-hebrew - mo
more M names - non-hebrew - mu-my
