Io as a girl's name is of Greek origin with unknown meaning. In Greek mythology, Io was a maiden who caught Zeus' eye, and was transformed into a cow to elude him.
Io: Baby Name Popularity
PER MILLION BIRTHS
U.S. POPULARITY RANKING
Check out these popular pages to discover more baby boy and baby girl names and meanings.
BABY GIRL NAMES A-Z
Click on a letter to search for more baby girl names and meanings.