Melekessky District (Russian: Мелеке́сский райо́н) is an administrative[1] and municipal[5] district (raion), one of the twenty-one in Ulyanovsk Oblast, Russia.

The area of the district is 3,472.3 square kilometers (1,340.7 sq mi).

[8] Within the framework of administrative divisions, Melekessky District is one of the twenty-one in the oblast.

[1] The city of Dimitrovgrad serves as its administrative center, despite being incorporated separately as a city of oblast significance—an administrative unit with the status equal to that of the districts.

[5] The city of oblast significance of Dimitrovgrad is incorporated separately from the district as Dimitrovgrad Urban Okrug.