Chadderton (pop. 34,818) is a town within the Metropolitan Borough of Oldham, in Greater Manchester, England. It lies along the course of the River Irk and the Rochdale Canal, on undulating land in the foothills of the Pennines, 1 mile (1.6 km) west of Oldham, 4.5 miles (7.2 km) south of Rochdale and 6 miles (9.7 km) northeast of the city of Manchester.

Historically part of Lancashire, Chadderton's early history is marked by its status as a manorial township, with its own line of lords and overlords, who included the Asshetons, Chethams, Radclyffes and Traffords. Chadderton in the Middle Ages was chiefly distinguished by its two mansions, Foxdenton Hall and Chadderton Hall, and by the prestigious families who occupied them. Farming was the main industry of the area, with locals supplementing their incomes by hand-loom woollen weaving in the domestic system.

Chadderton's urbanisation and expansion largely coincided with developments in textile manufacture during the Industrial Revolution and the Victorian era. A late-19th-century factory-building boom transformed Chadderton from a rural township into a major mill town—one of several in its region—and the second most populous urban district in the United Kingdom. More than 50 cotton mills had been built in Chadderton by 1914.

Although Chadderton's industries declined during the mid-20th century, the town continued to grow as a result of suburbanisation and urban renewal. The legacy of the town's industrial past remains visible in its landscape of red-brick cotton mills, now used as warehouses or distribution centres. Some of these are listed buildings because of their architectural, historical and cultural significance.

Chadderton Town Hall was the seat of Chadderton Urban District Council. It is Chadderton's second town hall, the first was the former Chadderton Lyceum building (demolished in 1975). The current town hall, Chadderton's first purpose built municipal building, was designed by Taylor and Simister of Oldham, and was opened in 1913 by Herbert Wolstencroft JP, the then chairman of Chadderton Urban District Council. The architectural style was intended to have "a broad and strong treatment of the English Renaissance". It features "charming gardens and a beautifully renovated ballroom". English Heritage granted it Grade II listed status in July 2013. Since 2007, Chadderton Town Hall has housed the Oldham Register Office, the civil registration authority for the Metropolitan Borough of Oldham. It is a licensed venue for marriage ceremonies, and holds records of births, marriages and deaths which have taken place in what is now the Metropolitan Borough of Oldham from 1837 to the present.

A two-storey brick-built mansion in its own well-kept garden of green grass. The ground floor has six windows - three on each side of a wooden front door. The second floor has seven windows. The house has a grey slate roof surmounted by two small brick chimneys. Behind the house are leafless trees and behind those, a clear blue sky.

Foxdenton Hall is a two-storey Georgian mansion and former manor house, with an English garden wall bond exterior and its own private gardens. The original Hall was erected in the mid-15th century as a home for the Radclyffes, who had acquired the title of joint Lords of the Manor with the Asshetons of Chadderton, through marriage. This Foxdenton Hall was demolished to make way for a second Hall, built in 1620. The ground floor of that second Hall now forms the basement of the present Hall, built in 1700. The building is described as "a dignified early Georgian house, particularly rare in this part of the country". The Radclyffes moved out of Foxdenton Hall in the late 18th century, favouring properties they had purchased in Dorset, although they still maintained ownership. Foxdenton Hall and the adjoining Foxdenton Park were leased to Chadderton Council by the Radclyffes in 1922, when they opened to the public. In 1960 the council took over ownership of the Hall, by which time it was in a state of disrepair. Following protest about funding and the condition of the building, Foxdenton Hall was restored in 1965.

Chadderton War Memorial is located outside Chadderton Town Hall, and was originally erected "in honour of the men of Chadderton who made the supreme sacrifice and in grateful remembrance of all who served their county" during the First World War, but later, the Second World War. It is a granite obelisk fronted by three steps. At the front on a short plinth stands a bronze figure of an ordinary soldier, holding a rifle in his right hand. It was designed by Taylor and Simister and sculpted by Albert Toft. Chadderton War Memorial was commissioned by the Chadderton War Memorial Committee and unveiled on 8 October 1921 by Councillor Ernest Kempsey.

Chadderton Hall Park is a public park by the River Irk in the north of Chadderton, spanning an area of over 15 acres (6 ha), in what were once the gardens of the manorial Chadderton Hall. At the end of the 19th century they were leased to Joseph Ball, who transformed the hall and grounds into a pleasure garden, complete with a boating lake and a menagerie. The hall was demolished in 1939. The park is now owned by Oldham Council, the local authority, and was opened to the public in 1956. It was awarded Green Flag status in 2006.