| Sijung County | |
| Native Name Lang: | ko |
| Settlement Type: | County |
| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info1: | 時中郡 |
| Translit Lang1 Info2: | Sijung kun |
| Translit Lang1 Info3: | Sijung-gun |
| Subdivision Type: | Country |
| Subdivision Name: | North Korea |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chagang Province |
| Area Total Km2: | 606 |
| Population As Of: | 2008[1] |
| Population Total: | 41,842 |
| Population Density Km2: | auto |
| Parts Type: | Administrative divisions |
| Parts: | 1 ŭp, 14 ri |
Sijung County is a kun, or county, in Chagang province, North Korea. It borders Kanggye and Changgang to the east, Manpo to the north and west, and Wiwon to the south. Formerly part of Kanggye, Sijung became a separate county in 1952 as part of a general reorganization of local government.
The terrain of Sijung is steep and mountainous in the east, where the Kangnam Mountains rise, but slopes downward toward the west. The highest point is Sirubong in the south, at 1355 m above sea level. The Changja River flows through north through the county, making a number of spectacular sharp twists on its way to join the Yalu. A portion of this has been dammed to create a large reservoir.
Sijung is served by both road and rail, with the Manpo Line stopping in the county. The Changja River reservoir is also used to ship some goods by water. Local industry is dominated by agriculture and mining.
Sijung County is divided into 1 ŭp and 14 ri: