Inachus (disambiguation)
Inachus or Inachos (Greek: Ίναχος) is:
- A town in Greece: Inachos, Greece
- Inachos (river), a river flowing into the Ionian Sea
- A king of Argos and personification of the same named river: Inachus
- Inachos (Achelous), a river flowing into the river Achelous
- Inachus (genus), a genus of crabs