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Home › Baby Names Directory › Killion

Killion

♂ Boy

Pronounced KIL-ee-un /ˈkɪl.i.ən/Medium

Meaning: A spelling of Killian (Cillian), from the Irish cill, 'church; cell', with a diminutive, often read as 'little church' or 'little warrior'. A heritage name we note respectfully.Low

In 30 seconds: An Irish name: Killion is a spelling of Killian, 'little church' (said 'KIL-ee-un'). A heritage name noted respectfully.
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Origin MediumIrish
MeaningA spelling of Killian (Cillian), from the Irish cill, 'church; cell', with a diminutive, often read as 'little church' or 'little warrior'. A heritage name we note respectfully.
U.S. rank (2025)#11403 ↗ Rising
2025 U.S. births6 boys (0.00% of U.S. boys)
Peak year2017
Total births (all-time)≈ 51

Popularity in the U.S. · SSA data

peak 201720092025

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

Killion is a spelling of Killian (Cillian), from the Irish cill, 'church; cell', with a fond diminutive, often read as 'little church' or 'little warrior'. Borne by early Irish saints. A heritage name we note respectfully. A flowing three-beat pick (said 'KIL-ee-un').

It appears only rarely in the U.S. Rare, Irish-rooted, and warm.

Did you know? Killion is a spelling of Killian (Cillian), from the Irish cill, 'church', often read as 'little church' — a heritage name we note respectfully (said 'KIL-ee-un').
Overall data confidence 50%
References - Killion — Irish spelling of Killian 'little church'

Variations

KillianCillianKillien

Nicknames

KillKil

Famous Bearers

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If you like Killion…

Killian— the common spelling Killion shares
Cillian— the Irish root name
Declan— a like Irish heritage name
Finnian— a like -ian Irish pick

Explore names like Killion

By themeheritageirishtraditional
By meaningWarrior

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Frequently Asked

What does the name Killion mean?

Killion is a spelling of Killian, from the Irish cill, 'church', often read as 'little church'.

How do you pronounce Killion?

It's said KIL-ee-un /ˈkɪl.i.ən/ - three syllables, stress on the first.

Is Killion a boy or girl name?

Killion is used here as a boy's name.

How popular is Killion?

Killion is a rare name in the U.S.

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