Maria of Vitebsk (died before 1349) was the first wife of Algirdas, future Grand Duke of Lithuania (marriage took place around 1318).
The only child of a Russian prince Yaroslav,[1] Maria was the only heir to the Principality of Vitebsk.
[3] Maria gave birth to five sons, all of whom grew up while Algirdas was still only a regional duke in Christianized lands of the Grand Duchy of Lithuania.
[4] After Maria's death, Algirdas married another Russian princess, Uliana of Tver.
After Algirdas' death, the eldest sons of Maria and Uliana battled over succession rights.