Novoduginsky District is an administrative and municipal district (raion), one of the twenty-five in Smolensk Oblast, Russia. It is located in the northeast of the oblast. The area of the district is . Its administrative center is the rural locality (a selo) of Novodugino. Population: 10,477 (2010 Census); The population of Novodugino accounts for 36.6% of the district's total population.