The Little Bear River is a 36.4-mile-long (58.6 km) tributary of the Bear River in northern Utah in the United States. It rises in the mountains east of Brigham City, where three forks (West, South, and East) join at Avon, then flows north to Paradise. At Paradise it spills out into the broad flats of Cache Valley, passing north by Hyrum, where it is impounded by the Hyrum Reservoir, then meandering generally west by Wellsville.