The Central District of North Savadkuh County () is in Mazandaran province, Iran. Its capital is the city of Shirgah.
In 2013, Shirgah District was separated from Savadkuh County in the establishment of North Savadkuh County, which was divided into two districts of two rural districts each, with Shirgah as its capital and only city at the time.
At the time of the 2016 National Census, the district's population was 17,818 inhabitants in 6,087 households.