Ögii nuur (, ; "Ogii Lake") is a sum (district) in the east of Arkhangai Province in central Mongolia, near the confluence of the Tamir and Orkhon rivers. The sum is named after Ögii Lake.
Ögii nuur, named after Ögii Lake, is a district in central Mongolia's Arkhangai province, situated near the confluence of the Tamir and Orkhon rivers.