Denton is a town in Tameside, Greater Manchester, England, five miles east of Manchester city centre. Historically part of Lancashire, it had …Denton is a town in Tameside, Greater Manchester, England, five miles east of Manchester city centre. Historically part of Lancashire, it had a population of 36,591 at the 2011 Census. Denton probably derives its name from Dane-town, an etymology supported by other place names in the area such as Danehead-bank and Daneditch-bourne. The word 'Dane' is itself derived from Anglo-Saxon denu, dene, daenland, meaning a valley. So literally Denton means valley town.