Tondu is a village in Bridgend County Borough, Wales, located about north of the town of Bridgend.
Tondu lies on the A4063 from Bridgend to Maesteg, and was established in the late 18th century as a coal mining village servicing the Parc Slip Colliery. In later years, an iron works was also established, and in the 19th century, a brick works was constructed using the clay from the carboniferous coal measures to make a variety of bricks, mostly for engineering. The brick works was demolished in 1977. The association with the coal industry was also reflected in the large area office of the National Coal Board in the village and a centre for the Mines Rescue Service.