| Proastio | |
| Name Local: | Προάστιο, Дорутово |
| Type: | community |
| Coordinates: | 40.4892°N 21.7114°W |
| Elevation: | 641 |
| Periph: | Western Macedonia |
| Periphunit: | Kozani |
| Municipality: | Eordaia |
| Municunit: | Ptolemaida |
| Population As Of: | 2021 |
| Population: | 349 |
| Postal Code: | 50200 |
| Area Code: | 24630 |
Proastio (Greek, Modern (1453-);: Προάστιο, South Slavic: Дурутово, Durutovo or Дорутово, Dorutovo) is a village located 4 km southeast of Ptolemaida, in Kozani regional unit, within the Greek region of Macedonia. It is situated at an altitude of 641 meters. At the 2021 census, the population was 349.