Look up Atreus in Wiktionary, the free dictionary.
Atreus is a character in Greek mythology.
Atreus can also mean:
- 14791 Atreus, an asteroid
- Atreus (God of War), a video game character
- Atreus, a lost play by Lucius Accius
- The Treasury of Atreus, a Bronze Age tholos tomb at Mycenae