79%RatingSave Gender Masculine Usage German, Spanish, Irish, French Pronounced Pron. KEE-lyan(German) [key·IPA] Meaning & HistoryExpand Links German and Spanish form of Cillian, as well as an Irish and French variant. Related NamesFamily Tree·Details VariantsCillian, Cillín, Killian(Irish) Killian, Kylian, Kyllian(French) DiminutiveLian(German) User SubmissionsKílian, Kilían, Kilián PopularityDetails Last ranked #56 in 2020 Austria Last ranked #89 in 2017 Catalonia, Spain Last ranked #450 in 2015 France Last ranked #202 in 2010 Spain (by decade) Last ranked #100 in 2020 Switzerland People think this name isRate·Details classic formal wholesome strong refined strange serious Name DaysName Days? Poland: July 8Spain: June 8