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By Grace Royal · Jul 2026

EE-O

Io

OriginJapanese
Meaning"rely on + emperor, rely on + hero"
GenderBoy
Also a girl's nameShow me Io as a girl's name
NB Rank#3152

On Nameberry

About Io

The name Io peaked for boys at #9951 in 2020. Io is occasionally used for girls in 2025.

Io in blog posts

Greek Names for Girls: 21 unexplored ancient treasures
Night Names are Heavenly
200+ Unique and Amazing Nature Names
Two-Letter Baby Names: Bo,Ty and Vi
15 Stellar Astronomy Baby Names

Io on more lists

Animal Names for Boys
2 Letter Boy Names
Names Ending in O for Boys
Names That Mean Hero
One Syllable Names for Boys

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