William or Guillaume, Grand Duke of Luxembourg may refer to any of the following grand dukes of Luxembourg:
- William I of the Netherlands (1772–1843), grand duke of Luxembourg from 1815 to 1840
- William II of the Netherlands (1792–1849), grand duke of Luxembourg from 1840 to 1849
- William III of the Netherlands (1849–1890), grand duke of Luxembourg from 1849 to 1890
- William IV, Grand Duke of Luxembourg (1852–1912), grand duke from 1905 to 1912
- Guillaume V, Grand Duke of Luxembourg (born 1981), grand duke since 2025
This disambiguation page lists articles about people with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.