| Sibley Lake National Wildlife Refuge | |
| Iucn Category: | IV |
| Map: | USA |
| Relief: | 1 |
| Location: | Griggs County, North Dakota, United States |
| Nearest City: | Cooperstown, North Dakota |
| Coordinates: | 47.5217°N -98.3461°W |
| Area: | 1,077 acres (4.35 km2) |
| Governing Body: | U.S. Fish and Wildlife Service |
The Sibley Lake National Wildlife Refuge is located in the U.S. state of North Dakota and consists of 1,077 acres (4.35 km2). Sibley Lake is a privately owned easement refuge, managed with by the U.S. Fish and Wildlife Service. The refuge was established to protect habitat for migratory bird species, white-tail deer, and other mammals. The refuge contains a 525-acre (2.12 km2) fresh water marsh that provides excellent migratory bird habitat. Valley City Wetland Management District oversees the refuge, which in turn is a part of the Arrowwood National Wildlife Refuge Complex.