Bystraya Sosna

The Bystraya Sosna (Бы́страя Сосна́) is a river in Oryol and Lipetsk oblasts in Russia. It is a right tributary of the Don, and it is 296 km long, with a drainage basin of 17400 km2. The river is usually frozen over from the end of November until the end of March.

The towns of Livny and Yelets are along the river.