| Sully Creek State Park | |
| Photo Width: | 280 |
| Map: | North Dakota |
| Map Width: | 280 |
| Relief: | 1 |
| Label: | Sully Creek State Park |
| Location: | Billings County, North Dakota, United States |
| Nearest City: | Medora, North Dakota |
| Coords: | 46.8958°N -103.5397°W |
| Area: | 63.03acres |
| Elevation: | 2261feet |
| Established: | 1970 |
| Free Label: | Named for |
| Designation: | North Dakota state park |
| Administrator: | North Dakota Parks and Recreation Department |
Sully Creek State Park is a public recreation area located along the eastern banks of the Little Missouri River about 2miles south of Medora in Billings County, North Dakota. The state park is used for camping, horse camping, and canoeing.
The park is the starting point for the Maah Daah Hey Trail which winds northwards to Theodore Roosevelt National Park and is used by horseback riders, mountain bikers, and hikers. The park offers camping, equestrian facilities, and canoe access to the Little Missouri River. It is open seasonally.