Ciara \cia-ra\ as a girl's name is pronounced kee-ARR-ah, see-ARR-ah. It is of Irish and Gaelic origin, and the meaning of Ciara is "black". Modern coinage. Feminine form of Ciaran, the name of two major Irish saints. Can also be traced back to Chiara (Italian) "light", or to Sierra (Spanish) "saw".
For more information, see also the related name Claire.