Askern (/ˈæskərn/) is a town and civil parish within the City of Doncaster, in South Yorkshire, England.

The sulphurous nature of Askern Lake had long been recognised, and the first bathing house opened in 1786.

By the 20th century the resort's popularity had declined, and the coming of coal mining permanenty changed the character of the town.

[8] The pit was closed in 1991 due to a low in the price of coal, and the surface buildings were demolished in 1993.

[14] Askern is served by bus service 51 to Doncaster, Carcroft, Skellow and Norton.