Astley is a settlement within the Metropolitan Borough of Wigan in Greater Manchester, England, variously described as a suburb or a village. Astley lies on flat land to the northwest of the city of Manchester, and is crossed by the Bridgewater Canal and the A580 "East Lancashire Road". It forms a continuous urban area with neighbouring Tyldesley, and is equidistant from Wigan and Manchester city centre, both away. The Astley Mosley Common ward of Wigan MBC, which covers both settlements, had a population of 11,654 in the 2001 Census, falling to 11,270 at the 2011 Census.