Killion

Descendant of Caollaidhe
Ireland origin · Boy name
97% boys3% girls
#11403US 2025
6Births / yr
Rising
51All-time births
📅 Since 200900

What does Killion mean and where does it come from?

Killion is an Anglicized form of the Irish surname 'Mac Caollaidhe', meaning 'son of Caollaidhe'. The name was originally a personal name meaning 'slender' or 'narrow'. The first recorded use of Killion can be traced back to early Irish genealogy records. It can also refer to the townland name in Co

Cultural significance
Killion has been a cherished name across cultures, particularly in Ireland-speaking communities, where it reflects values of descendant of caollaidhe.
Peak popularity
Reached #8698 in 2017 — currently #11403 in the US.
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Related Reading
Ireland-origin baby names with timeless appeal
Browse names →

How else can you spell Killion?

Same sound, different look — useful if you want something slightly more distinctive

What middle names flow best with Killion?

Killion works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Killion Jack
One syllable · timeless choice
Killion John
One syllable · timeless choice
Killion Luke
One syllable · timeless choice
Killion Miles
One syllable · vintage charm
Killion Beau
One syllable · on the rise
Killion Brooks
One syllable · timeless choice
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Middle Names
The best middle names for Killion
Browse ideas →

How popular is Killion right now?

Rising fast — up 328 spots — currently #11403 in the US out of 135.5k tracked names

US Trend 20152025#11403 · Top 8.4%
2015
2021
2022
2023
2024
2025
YearUS RankBirthsvs Prior Year
2025#114036▲ up 328
2024#117316▼ down 9846 · -98% births
2023#1885315▲ up 5 · +7% births
2022#1890295▲ up 5 · +11% births
2021#1895265▲ up 11612 · +5200% births
2015#135075

The story of Killion

Killion is a relatively modern name, first appearing in US records in 2009. With 39 total births recorded, Killion remains relatively uncommon. The name has grown more popular over time, rising from #13507 in 2015 to #1885 in 2023.

Names that peaked alongside Killion in 2017:

Killion by decade

Killion peaked in the 2010s. See all 2010s names →

DecadeBirths
2000s6
2010s33
2020s12
💎Killion has only 39 total recorded births since 2009 — rarer than 99% of names in our database.

What are good nicknames for Killion?

Common
KilKiIllion

Common questions about the name Killion

What does the name Killion mean?
Killion means "Descendant of Caollaidhe" — a name rooted in Ireland tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Killion?
Killion is currently a distinctive and less common name as a boy name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Killion?
Killion originates from Ireland tradition. Ireland names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
Is Killion a common or rare name?
Killion is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.
What are good nicknames for Killion?
Killion naturally lends itself to affectionate nicknames. Shortened versions based on the first syllable are most popular, and many parents also create unique pet names that feel personal to their family.