Meaning and history
Meaning unknown. In Greek mythology, Io was a princess loved by Zeus, who transformed her into a heifer to conceal her from Hera. A moon of Jupiter is named in her honor.
20062006: 5 births, rank #17,168
2007: 5 births, rank #17,636
2008: 5 births, rank #17,504
2009: 8 births, rank #12,429
2010: 6 births, rank #14,959
20112011: 9 births, rank #11,181
2012: 12 births, rank #9,109
2013: 12 births, rank #9,036
2014: 12 births, rank #8,966
2015: 5 births, rank #16,419
20162016: 16 births, rank #7,230
2017: 7 births, rank #12,713
2018: 11 births, rank #9,151
2019: 6 births, rank #13,799
2020: 11 births, rank #8,953
20212021: 15 births, rank #7,250
2022: 18 births, rank #6,464
2023: 10 births, rank #9,616
2024: no US SSA record for this spelling
20252025: 5 births, rank #14,942
In 2025, 5 babies were recorded with the name Io, ranking #14,942 among girls.