Girl name origins & meanings Irish : Little warriorGaelic : Fierce Girl name variations Kilean Kilian Kiliane Kilien Killiean Killien Killion Kyllien Boy name origins & meanings Irish : Strife, battle, small, fierceScottish : The little warlike one Boy name variations Kilian Kelian Kilean Kiliane Kilien Killiean Killien Killienn Killion Kyllian Kyllien Family name origins & meanings Irish : variant of Killeen, found in counties Clare and Galway.German and Dutch : variant spelling of Kilian.