| Kapetan Mitrousi | |
| Name Local: | Καπετάν Μητρούσι |
| Type: | municipal unit |
| Periph: | Central Macedonia |
| Periphunit: | Serres |
| Population: | 4125 |
| Population As Of: | 2021 |
| Area: | 87.485 |
| Coordinates: | 41.0667°N 47°W |
| Licence: | ΕΡ |
Kapetan Mitrousi (Greek, Modern (1453-);: Καπετάν Μητρούσι) is a former municipality in the Serres regional unit, Greece. Since the 2011 local government reform it is part of the municipality Serres, of which it is a municipal unit.[1] It is located in the west-central part of the Serres regional unit and has a population of 4,125 inhabitants (2021 census) and a land area of 87.485 km².[2] The seat of the municipality was the town of Provatas (pop. 829). Its other communities are Mitroúsi (pop. 1,599), Anagénnisis (523), Áno Kamíla (546), Vamvakiá (395) and Monokklisia (233).