Nanti is an Arawakan language spoken by approximately 250 people in southeastern Peruvian Amazonia, principally in a number of small communities located near the headwaters of the Camisea and Timpía Rivers. It belongs to the Kampan branch of the Arawak family, and is most closely related to Matsigenka, with which it is partially mutually intelligible., The language is also sometimes called Kogapakori (variants: Cogapacori, Kugapakori), a pejorative term of Matsigenka origin meaning 'violent person'.