McClellan Creek National Grassland is a National Grassland located in southern Gray County, Texas, United States. It was purchased with the goal of restoring badly eroded land to its natural state. The grassland is administered by the U.S. Forest Service together with Cibola National Forest and Black Kettle, Kiowa, and Rita Blanca National Grasslands, from common headquarters located in Albuquerque, New Mexico. The grassland is part of the combined Black Kettle and McClellan Creek Ranger District with offices in Cheyenne, Oklahoma.