Greek National Road 15 (Greek: Εθνική Οδός 15, abbreviated as EO15) is a single carriageway road in northern Greece. It connects Agios Germanos, near the border with North Macedonia, with the Greek National Road 6 near Kalampaka. It passes through Kastoria, Siatista and Grevena.
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|---|---|
| Εθνική Οδός 15 | |
| Major junctions | |
| North end | Agios Germanos |
| South end | Kalampaka |
| Location | |
| Country | Greece |
| Regions | West Macedonia, Thessaly |
| Major cities | Kastoria, Siatista, Grevena |
| Highway system | |
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