Wikipedia: Only two groups in the Old World are majority Q groups. These are the Selkups (~70%) and Kets (~95%). They live in western and middle Siberia and are small in number, being just under 5,000 and 1,500, respectively.
The Ket language has been linked to the Na-Dené languages of North America in the Dené-Yeniseian language family. Ket means “man” (plural deng “men, people”).