Delmas is a small maize farming town situated east of Johannesburg in Mpumalanga, South Africa.

The name was given by the Frenchman Frank Campbell Dumat, former owner of Witklip, after his grandfather's farm in France.

Red Star Raceway is located approximately 15 km (9.2 mi) outside of Delmas, to the North East of the town centre.

In 2022, construction started on a new filling station and convenience store to service both visitors to the track and travellers on the N12 freeway.

Delmas is an important railway junction on the Springs to eMalahleni rail-line, a line that connects to the Port of Richards Bay.