Tetyushi is the name shared by several inhabited localities across different regions of Russia. The most prominent urban locality with this name is a town situated within the Tetyushsky District of the Republic of Tatarstan.
Additionally, there are two rural localities named Tetyushi in other federal subjects. One is a selo located in the Bolshemanadyshsky Selsoviet of the Atyashevsky District in the Republic of Mordovia. The other is a village situated in the Bolshearsky Selsoviet of the Lukoyanovsky District in the Nizhny Novgorod Oblast.