Gleb Rostislavich of Smolensk

Gleb Rostislavich (died 1278) was prince of Smolensk from the 1240s, a son of Rostislav Mstislavich, considered the ancestor of the later Smolensk princely line. He probably succeeded around 1249 after Vsevolod Mstislavich died. In 1270 he campaigned against Novgorod with Yaroslav Yaroslavich of Vladimir.

In 1274 he joined a Golden Horde campaign against Lithuania organized by Khan Mengu-Timur, then marched on Tatar orders against Galicia; the campaign marked Smolensk's submission to the Horde, and the first Tatar census followed in 1275. Gleb died in 1278 and was succeeded by his brother Mikhail.