Denaby Main is a village situated between Mexborough and Conisbrough in the Metropolitan Borough of Doncaster in South Yorkshire, England. It was built by the Denaby Main Colliery Company to house its workers and their families, and originally given the name Denaby Main Colliery Village, to distinguish it from the village of Denaby, situated about ⅔ mile away on the road to Hooton Roberts and Kilnhurst; from that time, the old village became known as Old Denaby. In due course the Colliery Village part of the name was lost, leaving the village to be known as Denaby Main.