Charles of Nassau
Karl von Nassau is the name of the following people:
- Karl Ludwig (Nassau-Saarbrücken) (1665–1723), Count of Nassau-Saarbrücken
- Karl Heinrich von Nassau-Siegen (1743–1808), French adventurer and naval officer
- Karl (Nassau-Usingen) (1712–1775), Prince of Nassau-Usingen
- Karl Wilhelm (Nassau-Usingen) (1735–1803), Prince of Nassau-Usingen and Nassau-Saarbrücken
- Karl August (Nassau-Weilburg) (1685–1753), Prince of Nassau-Weilburg
- Karl Christian (Nassau-Weilburg) (1735–1788), Prince of Nassau-Weilburg
