The name Ciaran is a boy's name of Irish origin meaning "little dark one". Ciaran and is often added to lists like Irish Baby Names and discussed in our forums with posts like "Build a sibling set together!".
From the experts:
Extremely popular in Ireland, Ciaran is also well used in England and is beginning to be adopted by parents in the U.S., though usually via the more American-friendly Kieran spelling. The Irish spelling is, however, becoming more familiar on this side of the Atlantic, due to the rising popularity of Belfast-born actor Ciaran Hinds.
Although it was the name of twenty-six saints in Ireland, Ciaran was not used as a secular name there until the 1950s.