What names mean Black Irish?

Feminine names-

Ciara (dark eyes/hair)

Masculine names-

Ciarán (dark eyes/hair)

Dougal (dark stranger)

Another answer:

A large class of Irish names derives from colors and 'black' is represented by ciar, dub, gorm and temen in Old Irish. Some surnames contain these Words:

Kieran, Duffy, Gorman, Tynan for example.