Kearsley is a town in the Metropolitan Borough of Bolton, Greater Manchester, England. The population at the 2011 census was 14,212. Within the Historic County of Lancashire, it lies 8 miles (13 km) northwest of Manchester, 5 miles (8 km) southwest of Bury and 3+3⁄4 miles (6 km) south of Bolton.
It is bounded to the west by Walkden, the east by Whitefield, the north by Farnworth and the south by Clifton.
Kearsley was a township in the ancient ecclesiastical parish of Deane, in the Hundred of Salford. Kearsley Urban District was a local government authority from 1894 until 1974. In 1933, part of Clifton was added to Kearsley Urban District. Part of Outwood, Radcliffe became part of Kearsley in line with the 1933 Lancashire Review.