Vyacheslav Sviatoslavich of Vitebsk

Vyacheslav, called Vyachko, Sviatoslavich (died 1167 or 1173) was a prince of Vitebsk, the son of Svyatoslav Vseslavich and Sofia Vladimirovna. In 1129 the grand prince of Kiev exiled the Polotsk princes to Byzantium; Vyachko and his kinsman Vasilko returned only in 1131 or 1132. He occupied the Vitebsk throne in 1162.

Around 1167 he escorted his sister Euphrosyne of Polotsk on her pilgrimage, and she tonsured his two daughters. His last chronicle appearance found him aiding Novgorod in 1167.