The Vorona is a river in the Penza, Tambov, and Voronezh oblasts in Russia. It is a right tributary of the Khopyor, and is 454 kilometres long, with a drainage basin of 13,200 square kilometres. The average discharge at the mouth is 41.5 cubic metres per second. The river is frozen over from the beginning of December to the first half of April. Its main tributary is the Chembar.
The towns of Kirsanov, Uvarovo, and Borisoglebsk are along the Vorona.
