Demetrios I.

Demetrios I. is the name of the following people:

• Demetrios I. Poliorketes (around 336 BC – 283 BC), Macedonian general and ruler of the Diadochi
• Demetrios I (Bactria) († 182 BC / 175 BC), King of the Bactrian Empire
• Demetrios I (Soter) († 150 BC), King of the Seleucid Empire

This is a disambiguation page for differentiating between several terms identified with the same word.