4965 Waiwai 1000-9999 2,260 The people who are now called Waiwai by the outside world are remnants of various groups, such as the Mawayana, Hyxkaryana, Sikiana, and others. All of these tribe remnants have their own language or dialect. Nearly all that live among the Waiwai speak the Waiwai language fluently. South America Off ~2,020 1000-9999