Mossley is a small town and civil parish in Tameside, Greater Manchester, England. The town is in the upper Tame Valley in the foothills of the Pennines, 3 miles (4.8 km) southeast of Oldham and 8.9 miles (14.3 km) east of Manchester.The historic counties of Lancashire, Cheshire and the West Riding of Yorkshire meet in Mossley and local government wards and church parishes correspond to their boundaries. In 2001, Mossley had a population of 9,856.