Keisi

♀ Girl

Pronounced KAY-see /ˈkeɪ.si/Medium

Meaning: A spelling of Kacey/Casey, from the Irish Cathasaigh, 'vigilant; watchful.' A bright, breezy short name.Low

In 30 seconds: A breezy short name: Keisi reads as a Kacey/Casey form, 'vigilant; watchful' (said 'KAY-see'). Bright and modern.

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Origin LowIrish, American

MeaningA spelling of Kacey/Casey, from the Irish Cathasaigh, 'vigilant; watchful.' A bright, breezy short name.

U.S. rank (2022)#6576 ↗ Rising

2022 U.S. births18 girls (0.00% of U.S. girls)

Peak year2015

Total births (all-time)≈ 250

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

Keisi is a form of Kacey/Casey ('vigilant; watchful,' Irish). It reads sunny and modern — rare in this spelling in the U.S. (said 'KAY-see').

It appears only rarely in the U.S. Rare, breezy, and bright.

Did you know? Keisi spells Kacey/Casey — from the Irish Cathasaigh, 'vigilant; watchful' — a bright, breezy short name with a fresh look (said 'KAY-see').

Overall data confidence 38%

References — Keisi — Kacey/Casey form; Irish 'vigilant; watchful'

Variations

KaceyCaseyKaci

Nicknames

KeiSisi

Famous Bearers

Famous bearers coming soon.

If you like Keisi…

Casey— the Casey root, 'vigilant'

Macy— a like breezy -acy name

Lacey— a like sunny -ey name

Kaysi— the same modern feel

Kasi— lands in the same popularity range

Explore names like Keisi

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Frequently Asked

What does the name Keisi mean?

Keisi is a form of Kacey/Casey, from the Irish for 'vigilant; watchful.'

How do you pronounce Keisi?

It's said KAY-see /ˈkeɪ.si/ — two syllables, stress on the first.

Is Keisi a boy or girl name?

Keisi is a girl's name.

How popular is Keisi?

Keisi is a rare name in the U.S.