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Baby name

Killian

Boy

Origin of the name

Killian comes from the Irish Cillian. Saint Kilian, an Irish monk of the 7th century, brought Christianity to Franconia.

Rising name

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The high point came in 2017, with 1,506 births and the No. 248 spot that year. The rise continues, up 3% on the previous ten years. In 2025, it ranked No. 417. 49% of all babies named Killian since 1880 were born in the 2010s.
16,219births since 1880
2010sgeneration
No. 248rank at its peak, in 2017

Where babies named Killian are born

2017

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The darker the blue, the more common Killian is in the state, compared with its births. White: no births published that year.

Where it is most popular

Compared with the national average, Killian is most common in Washington (1.7 times), Colorado (1.7) and Oregon (1.6), taking into account all births in each state since 1910.

One letter apart

Names from the same era

Kyrie · Jamison · Major · Johan · Gideon · Maximilian

Born in…

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