Sosnovka () is a rural locality (a village) in Kosh-Yelginsky Selsoviet, Bizhbulyaksky District, Bashkortostan, Russia. The population was 44 as of 2010. There is 1 street.
Sosnovka is located 49 km north of Bizhbulyak (the district's administrative centre) by road. Vishnevka is the nearest rural locality.