75%RatingSave Gender Masculine Usage Irish, French Expand LinksMeaning & History Anglicized variant of CILLIAN, also used in France. Family Tree·DetailsRelated Names VariantsCillian, Cillín, Kilian(Irish) Kilian, Kylian(French) Other Languages & CulturesKilian, Lian(German) DetailsPopularity Last ranked #475 in 2016 France Last ranked #87 in 2016 Ireland Last ranked #309 in 2019 United States Rate·DetailsPeople think this name is strong strange nerdy Name Days?Name Days France: July 8 Entry updated July 27, 2015 ·