Mavis Mill, Coppull is a cotton spinning mill in Coppull, Chorley, Lancashire. Mavis was built in 1908 alongside the Coppull Ring Mill, which still survives under a change of use: Mavis is a car park. It was driven by a 2000 hp triple-expansion four-cylinder engine by J & E Wood, 1909. It had a 26 ft flywheel, 36 ropes.