Bürentogtokh (Mongolian: Бүрэнтогтох, lit. "to set completely") is a sum (district) of Khövsgöl aimag (province of Mongolia). The area is about 3,760 km², of which 2,870 km² are pasture. In 2005, the sum had 4251 inhabitants, mainly Khalkha and Khotgoid.