Plataneiko
| Plataneiko | |
|---|---|
| Native name | Πλατανέικο (Greek) | 
| Location | |
| Country | Greece | 
| Physical characteristics | |
| Source | |
| • location | Achaia prefecture | 
| Mouth | |
|  • elevation | Gulf of Patras | 
| Length | approx. 15 km (9.3 mi) | 
| Basin size | Ionian Sea | 
Plataneiko (Greek: Πλατανέικο) is a river in the northern part of the Achaia prefecture. It is part of the Kladeos River watershed. The river flows entirely in municipalities of Rio and empties into the Gulf of Patras.