Ciaran \cia-ran\ as a boy's name (also used as girl's name Ciaran), is pronounced KEE-a-rawn. It is of Irish and Gaelic origin, and the meaning of Ciaran is "black". Ciar?is derived from "ciar". Often anglicized as Kieran. Name of two Irish saints, a hermit of the fifth century and the founder of the monastery.
Ciaran has 1 variant form: Kieran.