Cullen \c(ul)-len\ as a boy's name is pronounced KULL-en. It is of Irish and Gaelic origin, and the meaning of Cullen is "good-looking lad; handsome". Poet William Cullen Bryant.

Cullen has 3 variant forms: Cullan, Cullin and Cullinan.

Baby names that sound like Cullen are Collen, Callan, Collin, Gillen, Kellen and Quillen.