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Kyllian

♂ Boy

Kyllian Pronunciation

Kyllian is pronounced KIL-ee-ən /ˈkɪl.i.ən/High

Meaning: French-favored spelling of Killian/Cillian, an Irish saint's name debated between cill, 'church', and a root meaning 'strife, battle'Medium

In 30 seconds: The Irish saint's name in French football boots: Kyllian is how France often spells Cillian — debated between 'little church' and 'strife'. Mbappé's first name is its near-twin.

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Origin MediumIrish, French

MeaningFrench-favored spelling of Killian/Cillian, an Irish saint's name debated between cill, 'church', and a root meaning 'strife, battle'

U.S. rank (2024)#3298 ↘ Falling

2024 U.S. births36 boys (0.00% of U.S. boys)

Peak year2023

Total births (all-time)≈ 297

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

History & Origin

Kyllian is a continental spelling of Killian (Irish Cillian), whose root is debated: cill, 'church' — fitting its missionary saints — or an older word for 'strife'. France adopted the name enthusiastically, and superstar Kylian Mbappé (one l) sent every spelling soaring through francophone maternity wards.

American use of the y-double-l form is rare, riding both Cillian Murphy's prestige and Mbappé's fame. The name lands soft, saintly, and stadium-tested.

Did you know? St. Kilian, an Irish missionary, became the patron of Würzburg, Germany — where his feast still fills the streets — proof that Irish names traveled long before this French spelling did.

Overall data confidence 75%

Behind the Name — Cillian — etymology, debated

Variations

KillianCillianKylian

Nicknames

KyKill

Famous Bearers

Famous bearers coming soon.

If you like Kyllian…

Killian— the standard anglicized spelling

Cillian— the Irish original Cillian Murphy carries

Kylian— the Mbappé spelling one letter away

Declan— a fellow Irish saint's name gone global

→ See all names like Kyllian

Browse the whole category: All Irish names → · All French names → · All origins →

Frequently Asked

How do you pronounce Kyllian?

Kyllian is pronounced KIL-ee-ən (/ˈkɪl.i.ən/). Press play above to hear Kyllian said aloud.

How do you say Kyllian?

Kyllian is said KIL-ee-ən (/ˈkɪl.i.ən/). Press play above to hear Kyllian said aloud.

What does the name Kyllian mean?

Kyllian is a spelling of Killian/Cillian, an Irish saint's name debated between cill, 'church', and a root meaning 'strife'.

Is Kyllian a boy or girl name?

Kyllian is a boy's name.

How popular is Kyllian?

Kyllian is rare in the U.S. and familiar in France.