| Wenceslas I | |
|---|---|
| Duke of Saxe-Wittenberg | |
 | |
| Elector of Saxony | |
| Reign | 6 December 1370 – 15 May 1388 |
| Predecessor | Rudolf II |
| Successor | Rudolf III |
| Born | c. 1337 |
| Died | 15 May 1388 Celle |
| Spouse | Cecilia of Carrara |
| House | Ascania |
| Father | Rudolf I, Duke of Saxe-Wittenberg |
| Mother | Agnes of Lindow-Ruppin |
Wenceslas I, Duke of Saxe-Wittenberg (c. 1337 – 15 May 1388, in Celle) from the House of Ascania ruled from 1370 to 1388 and was a prince-elector of the Holy Roman Empire as well as Prince of Lüneburg. He was the son of Rudolf I and his 3rd wife, Agnes of Lindow-Ruppin.