Vaišvilkas, Prince of Black Ruthenia, Grand Duke of Lithuania

Vaišvilkas or Vaišelga was Grand Duke of Lithuania from 1264 until his death in 1267. He was a son of Mindaugas, the first and only Christian King of Lithuania.

This is a list of Lithuanian monarchs who ruled Lithuania from its inception until the fall of the Grand Duchy of Lithuania in 1795. The Lithuanian monarch bore the title of Grand Duke, with the exception of Mindaugas, who was crowned king in 1253. Other Lithuanian rulers, such as Vytautas the Great, also attempted to secure a royal coronation, but these efforts were unsuccessful.