Yeravninsky District (; ) is an administrative and municipal district (raion), one of the twenty-one in the Republic of Buryatia, Russia. It is located in the east of the republic. The area of the district is . Its administrative center is the rural locality (a selo) of Sosnovo-Ozerskoye. As of the 2010 Census, the total population of the district was 18,705, with the population of Sosnovo-Ozerskoye accounting for 32.8% of that number.