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Cillian meaning and name origin
Cillian \ci(l)-lian\ as a boy's 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.
Baby names that sound like Cillian are Selwinn, Selwin and Sloan. Other similar baby names are Gillian, Callan, Collin, Cullin, Cullan, Dillan, Gillean, Gillion, Gillan, Gilian, Killean and Kilian.
Popularity of Cillian
Cillian is not a popular first name for men and an equally uncommon surname or last name for all people. (1990 U.S. Census)
Displayed below is the baby names popularity of the name Cillian for boys. (2010 statistics) Compare Cillian with similar and related boy baby names.