Oselna is a village in West Bulgaria. It is located in Etropole municipality, Sofia region.
It is 11 km southeast of the village of Dhurovo, 13 km west of the town of Teteven and 30 km northeast of the town of Etropole. The town of Botevgrad is 35 km west and the capital Sofia is 92 km southwest.
It is situated in mountain region with picterusque nature and in proximity flow the rivers Cherni vit and Stara reka, the altitude is between 500 and 699 m. The climate is temperate and is characterized with cold winter and warm but not hot summer and the precipitaions fall during the months March and June.
The permanent population is about 24 people.
There are electricity and water systems. The mobile operators have coverage. In the past the village was neighborhood of he village of Brusen.
The nearest school and kindergarten are in the village of Dzhurovo where you can also find medical assistance. Hospital works in the town of Botevgrad.
Saeva dupka cave that is part of the list of 100 Bulgarian National Tourist Sites is 31 km north. This exquisite natural phenomenon is among the beautiful and musician and here you can see the unique for Bulgaria rock formations helictites.