Oparinsky District () is an administrative and municipal district (raion), one of the thirty-nine in Kirov Oblast, Russia. It is located in the northwest of the oblast. The area of the district is . Its administrative center is the urban locality (an urban-type settlement) of Oparino. Population: 14,631 (2002 Census); The population of Oparino accounts for 37.6% of the district's total population.