Origin:Greek
Popularity:24746
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.

Popularity Trend Chart

Roll over the visual for detailed rankings by year.

Source: Social Security Administration

Not sure you have the perfect name? Search to add more baby names to your My Favorites list.
Name added. View your list