Sharyinsky District () is an administrative and municipal district (raion), one of the twenty-four in Kostroma Oblast, Russia. It is located in the southeast of the oblast. The area of the district is . Its administrative center is the town of Sharya (which is not administratively a part of the district). Population: 12,851 (2002 Census);
Administrative and municipal status
Within the framework of administrative divisions, Sharyinsky District is one of the twenty-four in the oblast. The town of Sharya serves as its administrative center, despite being incorporated separately as a town of oblast significance—an administrative unit with the status equal to that of the districts.
As a municipal division, the district is incorporated as Sharyinsky Municipal District. The town of oblast significance of Sharya is incorporated separately from the district as Sharya Urban Okrug.