Svyatoslav Yaroslavich of Ryazan

Svyatoslav Yaroslavich (died 1145) was a Rurikid prince of Ryazan and Murom, son of Yaroslav Svyatoslavich of Murom. On his father's death in 1129 the lands were divided: his elder brother Yury took Murom, while Svyatoslav and his younger brother Rostislav received the Ryazan region.

In 1143, after Yury's death, Svyatoslav moved to Murom's senior throne and ceded Ryazan to Rostislav. He died in Murom two years later. His son Vladimir later became grand prince of Ryazan.