Wenceslaus I, Duke of Luxembourg
| Wenceslaus I | |
|---|---|
| Count of Luxembourg, Arlon and Durbuy | |
| Reign | 1353-13 March 1354 |
| Predecessor | Emperor Charles IV |
| Duke of Luxembourg | |
| Reign | 13 March 1354-7 December 1383 |
| Successor | Wenceslaus IV |
| Duke of Brabant and Limburg with Joanna | |
| Reign | 1355-1383 |
| Predecessor | John III |
| Successor | Joanna |
| Born | 25 February 1337 Prague |
| Died | 7 December 1383 (aged 46) Luxembourg |
| Burial | Abbaye d'Orval, Belgium |
| Spouse | Joanna, Duchess of Brabant |
| House | Luxembourg |
| Father | John of Bohemia |
| Mother | Beatrice of Bourbon |
Wenceslaus I (also Wenceslas, Venceslas, Wenzel, or Václav, often called Wenceslaus of Bohemia in chronicles) (25 February 1337 – 7 December 1383) was the first Duke of Luxembourg from 1354. He was the son of John the Blind, King of Bohemia, and Beatrice of Bourbon.