Svyatoslav Glebovich of Bryansk

Svyatoslav Glebovich (died 1310) was the youngest son of Gleb Rostislavich of Smolensk and held Mozhaysk until 1303, when Daniil of Moscow absorbed the principality. In 1309 he expelled his nephew Vasily, whom the Smolensk prince had installed on the Bryansk throne, and seized the town himself.

In 1310 Vasily returned and stormed Bryansk, a Golden Horde detachment accompanying him. The Bryansk regiment hung back and Svyatoslav was defeated and killed, only his own retinue fighting to the end. His sons Gleb and Fyodor later held Bryansk and Rzhev respectively.