Charles III may refer to:
- Charles the Fat, Charles III of East Francia, (832–888)
- Charles the Simple, Charles III of West Francia, (879–929)
- Charles of Valois, duke Charles III of Anjou 1290–1325
- Charles III of Alençon (1337–1375)
- Charles III of Naples (died 1386)
- Charles III of Navarre, "the Noble" (1361–1425)
- Charles III, Duke of Bourbon (1490–1527)
- Charles III, Duke of Savoy, "the Good" (1486–1553)
- Charles III, Duke of Lorraine (1543–1608)
- Charles VI, Holy Roman Emperor, also Charles III of Hungary and pretender to the throne of Spain as Charles III. (1685–1740)
- Karl III Philip, Elector Palatine (1661–1742)
- Charles Edward Stuart (1720–1788), also known as Bonnie Prince Charlie and the Young Pretender, styled himself "Charles III, King of England and Scotland"
- Charles III of Spain (1716–1788)
- Charles III John of Norway or Charles XIV John of Sweden (1763–1844)
- Charles III, Duke of Parma (1823–1854)
- Charles III, Prince of Monaco (1818–1889)
- Charles I of Austria, also known as Charles III, King of Bohemia, (1887–1922)
- Charles the 3rd is a boss character from the video game Viewtiful Joe
- The possible future regnal name of Charles, Prince of Wales
Famous quotes containing the word iii:
“Knavery seems to be so much a the striking feature of its inhabitants that it may not in the end be an evil that they will become aliens to this kingdom.”
—George III (1738–1820)