Hagerman National Wildlife Refuge, National wildlife refuge in Grayson County, United States.

Hagerman National Wildlife Refuge is a protected area along Lake Texoma featuring wetlands, open water, and wooded sections that create diverse habitats. These landscapes support migratory waterfowl, raptors, and deer that inhabit the refuge seasonally or year-round.

The refuge was established in 1946 to preserve natural habitats for migratory and native animal species. It was created during a period when protecting bird migration corridors became increasingly important across the United States.

The refuge lies in the Central Flyway, and since 1946 about 316 bird species have been recorded there, with 273 regularly seen. Its name comes from the Hagerman family, who once owned the land. The Friends of Hagerman group runs the visitor center and leads bird walks.

The Wildlife Drive offers an easy way to explore the grounds by car, followed by several walking paths of varying lengths for those on foot. The best viewing opportunities are found at observation areas, especially during early morning or late afternoon hours.

Canada geese arrive around October and stay until March, when they return north to breed. Snow geese follow in November, and peak duck numbers can approach 20,000 in October. The refuge lies on the Central Flyway, and 316 bird species have been recorded here since 1946.