78%RatingSave Gender Masculine Usage Irish Meaning & History Probably from Old Irish cell meaning "church" combined with a diminutive suffix. This was the name of a 7th-century Irish saint who evangelized in Franconia. He was martyred in Würzburg. Related NamesFamily Tree·Details VariantsCillín, Kilian, KillianOther Languages & CulturesKilian, Killian, Kylian, Kyllian(French) Kilian, Lian(German) Kilian(Spanish) User SubmissionCillian PopularityDetails Last ranked #223 in 2022 England and Wales Last ranked #9 in 2023 Ireland Last ranked #4 in 2023 Northern Ireland Last ranked #99 in 2023 Scotland Last ranked #593 in 2023 United States People think this name isRate·Details classic formal upper class natural wholesome strong refined strange complex serious Categories Irish actors, martyrs, saints, Squishmallows, top 10 in Ireland, top 10 in Northern Ireland, trendy, uncertain etymology, victims