What does Cillian mean?
Cillian [cil-lian] as a boys' name is of Irish and Gaelic origin, and the meaning of Cillian is "bright-headed". Also possibly "strife" or "monastery, church". See Kelly. Name of various early Irish saints. Killian is the anglicized form.
(male) Cilan, Cilin, ..
(female) Cilian, Cillisan, .. Middle name pairings:
Cillian Malakai (C.M.), ..
How popular is Cillian?
Cillian is an uncommonly occurring given name for men and an equivalently uncommon last name too for all people. (2000 U.S. Demographics)
Cillian entered the list in 2012 and reached its top position of #1407 in the U.S. in 2015. (Top Baby Names, 2015)
Which version is better?with similar and related boy names. Popular related forms of Cillian (#1407 a year ago) are Killian (#348 a year ago), Kilian (#1330) and Kelly (#1582). Other forms, like Killean, are uncommon. These forms of Cillian were at the apex of their popularity in the 1960s (usage of 0.1%) and are now significantly less conventional (usage 0.1%, 52% less), with the version Kelly going out of style. Killian is the most chic boy name among these.
Similar NamesRecommended names are Caelan, Cailean, Cailin, Calan, Callan▲, Caolan, Colan, Colin, Collen, Collin, Colwin, Cullan, Cullen▲, Cullin, Cullinan, Dillan, Eilian, Filian, Fillan, Gilian, Gillan, Gillean, Gillian, Gillion, Gillman, Tillman▼ and William▼. These names tend to be more commonly used than Cillian.See names in meaning and etymology.