|Administrative region||Central Greece|
|• Municipal unit||162.431 km2 (62.715 sq mi)|
|Elevation||124 m (407 ft)|
|• Municipal unit||4,818|
|• Municipal unit density||30/km2 (77/sq mi)|
|• Population||699 (2011)|
|Time zone||UTC+2 (EET)|
|• Summer (DST)||UTC+3 (EEST)|
|Postal code||340 17, 345 00|
Dystos (Greek: Δύστος [ˈðistos]; Latin: Dystus) is the name of a lake, village and former municipality in Euboea, Greece. Since the 2011 local government reform it is part of the municipality Kymi-Aliveri, of which it is a municipal unit. The municipal unit has an area of 162.431 km2. The seat of the municipality was Krieza.
The ancient town Dystus was mentioned by the 4th century BCE historian Theopompus. It is thought to have been founded by the Dryopians. The site of the ancient town is . During the 1950s, the power corporation of Greece established a steam power plant close to the lake Dystos at the city of Aliveri. That power plant used lake water for the cooling system.
|Year||Village population||Municipality population|
- "Απογραφή Πληθυσμού - Κατοικιών 2011. ΜΟΝΙΜΟΣ Πληθυσμός" (in Greek). Hellenic Statistical Authority.
- Kallikratis law Greece Ministry of Interior (in Greek)
- "Population & housing census 2001 (incl. area and average elevation)" (PDF) (in Greek). National Statistical Service of Greece. Archived from the original (PDF) on 2015-09-21.
- Smith, William, ed. (1854). "Dystus". Dictionary of Greek and Roman Geography. 1. London: John Murray.
- DYSTOS Euboia, Greece, entry in The Princeton Encyclopedia of Classical Sites.