Rostislav Vasilkovich

Rostislav Vasilkovich, baptized Gregory (died before 1141), was a Rurikid prince, son of Vasilko Rostislavich of Terebovlia. On his father's death in 1124 he became prince of Terebovlia while his brother Ivan took Halych.

In 1125 and 1126 he and Ivan joined Mstislav of Kiev in backing their cousin Rostislav Volodarevich of Peremyshl against Vladimir Volodarevich of Zvenigorod, who was supported by the king of Hungary. He died before 1141, and Terebovlia then passed to Ivan.