Morkinsky District (; ) is an administrative and municipal district (raion), one of the fourteen in the Mari El Republic, Russia. It is located in the southeast of the republic. The area of the district is . Its administrative center is the urban locality (an urban-type settlement) of Morki. As of the 2010 Census, the total population of the district was 32,403, with the population of Morki accounting for 30.6% of that number.