Armthorpe is a large suburban village and civil parish in the City of Doncaster, South Yorkshire, England.

Its probable origination means outlying farmstead or hamlet (from the Old Scandinavian - thorp) of a man named Earnwulf or Arnulfr.

Armthorpe (Ernulfestorp) was recorded in the Domesday Book as being the property of the monks of Roche Abbey near Maltby, who had a grange there at which an official resided who managed this part of the estates of the establishment and who was sometimes a brother of the house: they had also an officer called their forester.

During the late 19th and for most of the 20th century Armthorpe became known for its Coal mining and a deep seam Colliery was sunk; the pit was named Markham Main.

The old colliery site is now a large housing estate, with a thriving community with parks and tracks for walking and cycling to the local wood.