Lydus (disambiguation)
Lydus or Lydos is an adjective or a name based on the adjective for a person or other object from ancient Lydia. It can mean:
- Lydus, third king of Maeonia in succession to his father Atys
 - Lydos, 6th century BC vase painter
 - Lydus, John the Lydian, a 6th-century AD Byzantine administrator
 - Lydus, a genus of blister beetle