Crossbank is an area of Lees, a village in the Metropolitan Borough of Oldham, Greater Manchester, England.Historically a part of Lancashire, the name Crossbank is thought to derive from the days of the Knights Templar when a cross was etched into an earthen bank to denote lands granted to them.Prior to 1894, Crossbank had formed a hamlet linked with the parish of Ashton-under-Lyne, and lying within the Oldham parliamentary borough.