Sarmanovsky District (Russian: Сарма́новский райо́н; Tatar: Сарман районы) is a territorial administrative unit and municipality of the Republic of Tatarstan within the Russian Federation. It is located in the east of the Republic of Tatarstan. The administrative center of the district is the village of Sarmanovo. At the beginning of 2020, 34,230 people lived in the district (12,695 are the urban population and 21,535 live in rural conditions).