Grotton is a residential area in Saddleworth, a civil parish of the Metropolitan Borough of Oldham, in Greater Manchester, England.

Located along the A669 road, it forms a continuous urban area with Austerlands and Springhead, which in turn link to Lees and Oldham, all of which are to Grotton's west.

[citation needed] Before the inter-war residential development, Grotton was home to light industry, including brickworks and a couple of textile mills.

Some still prominently featured, such as the Grade 2 listed Grotton pub built in 1938 have now been converted to a Co-op along with a lido and tennis courts added in 1935 to serve the leisure needs of the burgeoning community.

East of Grotton, the line ran to join the current trans-pennine railway line at Greenfield railway station, but while it is possible to walk east from the station to the western portal of Lydgate Tunnel, the tunnel itself is blocked off and impassable, although it is maintained by the former British Railways Property Board in order to prevent subsidence.