| Country: | GRC |
| Type: | EO |
| Route: | 13 |
| Map: | Greek National Road 13.JPG |
| Direction A: | North |
| Direction B: | South |
| Terminus B: | Elassona |
| Regions: | Central Macedonia, Thessaly |
| Cities: | Katerini |
Greek National Road 13 (Greek, Modern (1453-);: Εθνική Οδός 13, abbreviated as EO13) is a single carriageway road in northern Greece. It connects Katerini with the Greek National Road 3 at Mikro Eleftherochori, 8 km north of Elassona.
The road passes through the following places: