Sosnovka () is a rural locality (a village) in Alegazovsky Selsoviet, Mechetlinsky District, Bashkortostan, Russia. The population was 22 as of 2010. There is 1 street.
Sosnovka is located 20 km northwest of Bolsheustyikinskoye (the district's administrative centre) by road. Bolshekyzylbayevo is the nearest rural locality.