Agecroft Colliery was a coal mine on the Manchester Coalfield that opened in 1844 in the Agecroft district of Pendlebury, Lancashire, England. It exploited the coal seams of the Middle Coal Measures of the Lancashire Coalfield. The colliery had two spells of use; the first between 1844 and 1932, when the most accessible coal seams were exploited, and a second lease of life after extensive development in the late 1950s to access the deepest seams.