Sylvestr (Сильвестр in Ukrainian) (c.1055–1123) was a clergyman and a writer in Kievan Rus. Some sources name Sylvestr as a compiler of either the Primary Chronicle itself or its second edition. He was a hegumen of the Vydubetsky Monastery in Kiev, which had been founded by Prince Vsevolod Yaroslavich. In 1118, Sylvestr was sent to Pereyaslavl Yuzhniy as a bishop. As a person close to Vsevolod's son Vladimir Monomakh, Sylvestr played a notable role in political and ecclesiastical affairs of Kievan Rus.