Demenika
Demenika 
    Δεμένικα  | |
|---|---|
Settlement  | |
| Coordinates: 38°12′N 21°45′E / 38.200°N 21.750°E | |
| Country | Greece | 
| Geographic region | Peloponnese | 
| Administrative region | West Greece | 
| Regional unit | Achaea | 
| Municipality | Patras | 
| Municipal unit | Messatida | 
| Community | Saravali | 
| Elevation | 45 m (148 ft) | 
| Population  (2021)  | |
 • Total  | 2,845 | 
| Time zone | UTC+2 (EET) | 
| • Summer (DST) | UTC+3 (EEST) | 
| Postal code | 265 00  | 
| Area code(s) | 2610 | 
| Vehicle registration | AX | 
Demenika (Greek: Δεμένικα) is a village/suburb in the municipality of Patras, Achaea, Greece. It lies 5 kilometres (3.1 mi) south of the city centre, south of the river Glafkos. It is part of the community of Saravali within the municipal unit of Messatida. It is 2 km northeast of Ovrya and 4 km east of Paralia. The Greek National Road 33 (Patras - Tripoli) passes through the village, and the new Greek National Road 9 (Patras - Pyrgos) passes south of the village.