Uncas \u-ncas, un-cas\ as a boy's name is of Native American Indian origin, and the meaning of Uncas is "the fox". Literary: in James Fenimore Cooper's novel "The Last of the Mohicans", Uncas is the noble Mohican who rescues and falls in love with English Cora Munro.
Baby names that sound like Uncas are Angus, Aengus, Anngus, Aonghas and Jancsi. Other similar baby names are Pincas, Nicos, Pincus and Sancos.