Five Y-chromosome short tandem repeat (STR) loci (DYS389I, DYS389II, DYS390, DYS391, and DYS393) were typed in 81 males from seven tribal populations of south India, including 30 Koragas, 23 Yeravas, 5 Mullukurunan, 2 Mullukurumba, 4 Paniya, 3 Kuruchian and 3 Bettakurumba; and 11 south Indian caste individuals of mixed origins.