Ker is of Irish origin, meaning 'dark-haired'. It's a unisex name, used for both boys and girls. The name gained popularity during the Celtic revival period of the 19th century. Notable individuals named Ker include American poet Ker ection, known for her minimalist poetry, and French cyclist Ker Landry, who competed in the Tour de France.
"KerAnn is quite rare, with only five babies named thus each in 1983 and 1991."