Coi

♂ Boy

Pronounced KOY /ˈkɔɪ/High

Meaning: A modern name, variously an echo of Koi ('a carp/ornamental fish', Japanese) or Coy ('bashful; shy', English); routes uncertainLow

In 30 seconds: A carp; bashful: Coi echoes Koi/Coy. Crisp, modern, and warm (said 'KOY'). Routes uncertain.

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Origin LowAmerican

MeaningA modern name, variously an echo of Koi ('a carp/ornamental fish', Japanese) or Coy ('bashful; shy', English); routes uncertain

U.S. rank (2025)#9903 ↗ Rising

2025 U.S. births7 boys (0.00% of U.S. boys)

Peak year2021

Total births (all-time)≈ 72

Popularity in the U.S. · SSA data

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

Coi is a modern name, variously an echo of Koi ('a carp/ornamental fish', Japanese) or Coy ('bashful; shy', English; routes uncertain, which we flag honestly). A crisp, modern name (said 'KOY').

In the U.S. it appears very recently. Rare, a-recent-coinage, and crisp.

Did you know? Coi is a modern name, variously an echo of Koi ('a carp', Japanese) or Coy ('bashful; shy') — a crisp, modern name (the routes are uncertain, which we note; said 'KOY').

Overall data confidence 18%

U.S. Social Security Administration name files — routes uncertain

Variations

KoiCoyKoy

Nicknames

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Famous Bearers

Famous bearers coming soon.

If you like Coi…

Koi— a name it echoes

Coy— a name it echoes

Koy— a kin spelling

Troy— a sound-neighbor -oy boys' name

Explore names like Coi

By themeuncertain english coinage american

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Frequently Asked

What does the name Coi mean?

Coi is a modern name, variously an echo of Koi ('a carp', Japanese) or Coy ('bashful'); we flag it honestly.

How do you pronounce Coi?

It's said KOY /ˈkɔɪ/ — one syllable.

Is Coi a boy or girl name?

Coi is a boy's name.

How popular is Coi?

Coi is a very rare name in the U.S.