Kera /kera/ [2 sylls.] as a name for girls is of Irish and Gaelic derivation, and the name Kera means black.Kera is an alternate spelling of Kerry (Irish, Gaelic): from the male name Ciaran. Compare surname Kero.Kreatif forms: Kenra, Kerah.2000 U.S. Census). Displayed below is an analysis of the popularity of the girl name Kera and affiliated names. Prominent varying forms of Kera (unlisted) are Kara (#442 a year ago) , Keri, Kerri, Kerrie and Kerry.