Ikh-Uul (Mongolian: Их-Уул, literally "great mountain") is a sum of Khövsgöl aimag.

The center, officially named Selenge (Mongolian: Сэлэнгэ), is situated close to the Selenge river, 112 km east of Mörön and 589 kilometers from Ulaanbaatar.

The Ikh-Uul sum was founded, together with the whole Khövsgöl aimag, in 1931.

In 2004, there were roughly 140,000 heads of livestock, among them 49,000 sheep, 73,000 goats, 10,000 cattle and yaks, 8,800 horses, and 46 camels.

[1] In 1997, the sum center was connected to the Mongolian central power grid.