Home › Baby Names Directory › Keisi
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Keisi
♀ Girl
How to Pronounce Keisi
Pronounced KAY-see
🔊 Hear it /ˈkeɪ.si/ Medium ⧉ copy
Meaning: A spelling of Kacey/Casey, from the Irish Cathasaigh, 'vigilant; watchful.' A bright, breezy short name. Low ⧉ copy
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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Meaning A spelling of Kacey/Casey, from the Irish Cathasaigh, 'vigilant; watchful.' A bright, breezy short name.
U.S. rank (2022) #6576 ↗ Rising
2022 U.S. births 18 girls (0.00% of U.S. girls)
Peak year 2015
Total births (all-time) ≈ 250
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Shop mom essentials Popularity in the U.S. · SSA data peak 2015 2002 2022 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 Kacey Casey Kaci
Nicknames Kei Sisi
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
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.