It's the Irish Gaelic spelling of the name 'Kieran', and they are both pronounced roughly the same way. 'Cair' means 'dark' or 'black', so the name usually meant "dark one" (without any forboding conotations, rather intended as a term of indearment) and historically would have been the name given to children with dark hair and eyes, back when Gaelic was the tongue of the region. It still remains a very popular Irish name today.
BTW, it is a much more common man's name than woman's, at least in Ireland, and has only come into vogue as a woman's name in recent decades (not that this last bit is all that important, but it is part of the name's history). It was largely popularized by the canonization of a couple of 6th century fellows).
http://en.wikipedia.org/wiki/St._Kieran
Ciaran Hope's birth name is Ciaran John Hope.
Ciaran Fallon's birth name is Ciaran Patrick Fallon.
Ciaran Griffiths's birth name is Ciaran Joseph Griffiths.
Ciaran Cronin's birth name is Jamal Keron Kronando.
The name Ciaran is of Gaelic orgin, and it mean "black" or "little dark one". It is an Irish name.
Bouncer's name is Ben and Lol's is Ciaran
Ciaran Tyrrell is 6'.
Ciaran Gribbin is 6'.
Ciaran Fitzgerald was born in 1952.
Ciaran Barr was born in 1964.
Ciaran Gribbin was born in 1976.
Ciaran Berry was born in 1971.