Tosontsengel (Mongolian: Тосонцэнгэл) is a sum of Khövsgöl aimag. The area is 2,050 km², of which 1,800 km² are pasture and 11 km² are farmland. In 2000, Tosontsengel had a population of 4,161 people, including some Khotgoid. The sum center, officially named Tsengel (Mongolian: Цэнгэл), is located 64 km east-southeast of Mörön and 607 km from Ulaanbaatar.