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Io
♂ Boy
How to Pronounce Io
Pronounced EE-oh
🔊 Hear it /ˈiː.oʊ/ Medium ⧉ copy
Meaning: A name from Greek myth — Io, a mortal loved by Zeus and turned into a heifer. Also the innermost of Jupiter's large moons. A short, myth-rich name. Low ⧉ copy
In 30 seconds: A two-beat name: Io — a Greek-myth name; also a moon of Jupiter (Greek) (said 'EE-oh'). A Greek-myth name, which we note.
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Meaning A name from Greek myth — Io, a mortal loved by Zeus and turned into a heifer. Also the innermost of Jupiter's large moons. A short, myth-rich name.
U.S. rank (2023) #12949 ↘ Falling
2023 U.S. births 5 boys (0.00% of U.S. boys)
Peak year 2014
Total births (all-time) ≈ 31
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Shop mom essentials Popularity in the U.S. · SSA data peak 2020 2014 2023 U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data .
History & Origin Io is a name from Greek myth, Io, also a moon of Jupiter; a short, myth-rich name (said 'EE-oh').
It appears only rarely for boys in the U.S. Rare, mythic, and short.
Did you know? Io is a figure of Greek myth — a mortal loved by Zeus — and the name of the innermost large moon of Jupiter (said 'EE-oh').
Overall data confidence 44%
References — Io — Greek myth Io; also a moon of Jupiter
Famous Bearers Famous bearers coming soon.
If you like Io… Arlo — a like short -o name Theo — a like short Greek-flavoured name Milo — a like short -o name Enzo — a like short -o name
Frequently Asked What does the name Io mean? Io is a name from Greek myth — a mortal loved by Zeus — and also a moon of Jupiter.
How do you pronounce Io? It's said EE-oh /ˈiː.oʊ/ — two syllables, stress on the first.
Is Io a boy or girl name? Here Io is used as a boy's name.
How popular is Io? Io is extremely rare in the U.S. — a deep-tail, newly emerging name.