Ace Mill is a cotton spinning mill in Chadderton in the Metropolitan Borough of Oldham, Greater Manchester. It was built as Gorse No. 2 Mill, in 1914 and cotton was first spun in 1919 by the Ace Mill Ltd, who renamed the mill. It was taken over by the Lancashire Cotton Corporation in the 1930s and passed to Courtaulds in 1964. Production ended in 1967. Although known as Ace Mill, Hollinwood (due to Hollinwood being the closest serving railway station), the mill is located in the Whitegate area of south Chadderton around a mile away from Hollinwood.