The name Killian is a girl's name meaning "war strife or church".

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Yes, another Irish surname, turned boys' name, turned unisex name. But we think this one has a bit more going for it than Logan or Mason, given its similarity in sound to very traditional <a href="https://nameberry.com/girls-names">feminine names</a> Gillian and Lillian. 

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Killian

The name Killian peaked for girls at #3498 in 1997. Killian is also used for boys, ranking #369 in 2024.

The name Killian is a boy's name of Irish origin meaning "war strife or church".

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Killian – aka Cillian – is a spirited yet resonant Gaelic name that was borne by several Irish saints and could make a distinctive replacement for the dated Kelly. Kylian is another spelling that's gaining traction, thanks to French soccer star Kylian Mbappé. Possible downsides: an unsavory first syllable and a connection to the trendy brew. 

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The name Killian is currently ranked #369 in U.S. births. and peaked for boys at #248 in 2017. The name is most popular in KILLIAN, KILLIAN, and KILLIAN. Killian is occasionally used for girls in 2024.

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Killian

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