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Kayce is a unisex name that was the fastest-rising boy name of 2022 — thanks to a male character on the hit show Yellowstone. This particular Kayce pronounces the name like Casey, which feels particularly approachable for a girl as well.

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Kayce

The name Kayce peaked for girls at #1212 in 1987. The name is most popular in KAYCE, KAYCE, and KAYCE. Kayce is also used for boys, ranking #375 in 2025.

Kacey

The name Kayce is a boy's name of English origin meaning "brave in battle, vigilant".

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A unisex name that can be pronounced with one or two syllables (KAYS or KAY-see), Kayce was among the fastest-rising names of 2022 in the US, jumping 490 spots, thanks to the cool-cowboy association from character Kayce Dutton on the hit TV Western Yellowstone. This Kayce's name is pronounced like "Casey", leading to renewed interest in this spelling too.
 
A recent year saw it rank in the Top 400 in the US, given to around 850 boys, while in England and Wales, it was the second fastest rising name, climbing 374 places into the Top 500.
 
The name ultimately comes from the Irish surname Ó Cathasaigh, itself from the Old Irish Cathassach (KAH-huh-suhkh) meaning "vigilant, brave in battle".

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The name Kayce is currently ranked #375 in U.S. births. and peaked for boys at #375 in 2025. The name is most popular in KAYCE, KAYCE, and KAYCE. Kayce is occasionally used for girls in 2025.

Year	US rank	Births	Per million
2014	#4,407	33	18.5
2015	#4,788	29	16.2
2016	—	0	0
2017	—	0	0
2018	#4,712	29	17
2019	#4,393	32	19.1
2020	—	0	0
2021	#3,229	50	30.5
2022	#3,098	53	32.3
2023	#2,798	61	38
2024	#2,138	89	54.9
2025	#2,180	85	52.9

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