Sitdik-Mullino (; , Sitdiq-Mulla) is a rural locality (a village) in Kebyachevsky Selsoviet, Aurgazinsky District, Bashkortostan, Russia. The population was 57 as of 2010. There is 1 street.
Sitdik-Mullino is located 15 km southeast of Tolbazy (the district's administrative centre) by road. Tashlykul is the nearest rural locality.