Mandya District is an administrative district of Karnataka, India. Mandya District borders on the south by Mysore District, on the west by Hassan District, on the north by Tumkur District and on the east by Ramanagar district. The district was formed in the year 1939.
The main town is in Mandya District is Mandya. As of 2011, the district population was 1,808,680 of which 16.03% was urban.