The name Callan is a girl's name meaning "descendent of Cathalan; descendent of the battle ruler".

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Callan is a Top 100 name for boys in Scotland and is on the rise in the US too, however, it has a unisex feel to it, thanks to nickname Callie.
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An anglicized form of the Irish surname Ó Cathaláin, Callan was given to around 60 girls in the US in a recent year, the highest number on record, but nevertheless only a small handful compared to the nearly 1000 boys given the name.  

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Callan

The name Callan peaked for girls at #2252 in 1988. The name is most popular in CALLAN, CALLAN, and CALLAN. Callan is also used for boys, ranking #190 in 2025.

The name Callan is a boy's name meaning "descendent of Cathalan; descendent of the battle ruler".

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This anglicized form of the Irish surname Ó Cathaláin links back to the Irish given name, Cathal. Similar to Callum, Caleb, and Calvin, it might feel more usable outside of Ireland and Scotland than its origin name.
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Currently in the Scottish Top 100, it also ranks in the US Top 400 and has been climbing in recent years. 

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The name Callan is currently ranked #190 in U.S. births. and peaked for boys at #190 in 2025. The name is most popular in CALLAN, CALLAN, and CALLAN. Callan is occasionally used for girls in 2025.

Caelan

Year	US rank	Births	Per million
2014	#4,795	29	16.2
2015	#4,749	29	16.2
2016	#4,272	34	19.2
2017	#4,496	31	18
2018	#3,446	45	26.5
2019	—	0	0
2020	#4,567	29	17.9
2021	#3,121	52	31.7
2022	#3,480	45	27.4
2023	#2,823	60	37.4
2024	#3,047	53	32.7
2025	#2,616	66	41.1

Callan

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