Costello

male · #11403 Killion “little church” male · #10018 Finian “fair or white” male · #12634 Finnean “fair” male · #7842 Fitzpatrick “son of Patrick” male · #7018 Kilyan “Irish spelling variant of Cillian, traditionally linked to Gaelic ceallach, meaning “war” or “strife.”” male · #5673 Donavon “descendant of Donndubán” unisex · #3002 Callaghan “Descendant of Ceallach; Ceallach is traditionally interpreted as “bright-headed,” though its etymology is debated.” male · #1487 Finnian “fair or white”