Constantine III

Constantine III may refer to:

• Constantine III (Western Roman Emperor), self-proclaimed western Roman Emperor 407 – 411
• Constantine III (Byzantine emperor), Byzantine Emperor in 641
• Constantine III of Scotland, king of Scotland 995 – 997
• Constantine III of Britain, legendary 6th century King of the Britons
• Constantine III of Armenia
• Patriarch Constantine III of Constantinople

See also

• Constantius III