Torbeyevsky District (Russian: Торбе́евский райо́н; Moksha: Тарбеень аймак; Erzya: Торбейбуе) is an administrative and municipal district (raion), one of the twenty-two in the Republic of Mordovia, Russia. It is located in the southwest of the republic. The area of the district is 1,124.9 square kilometers (434.3 sq mi). Its administrative center is the urban locality (a work settlement) of Torbeyevo. As of the 2010 Census, the total population of the district was 21,479, with the population of Torbeyevo accounting for 43.6% of that number.