Circuit Zolder, Motorsport racing track in Heusden-Zolder, Belgium

Circuit Zolder is a motorsport racing track in Heusden-Zolder that stretches roughly four kilometers and includes ten corners of different radii. The facility features several straight sections positioned between technical passages, creating a varied layout for racing events.

Designed by Dutch engineer John Hugenholtz and opened on 19 June 1963, the circuit was originally 4.2 km long. It hosted the Belgian Formula One Grand Prix from 1973 to 1982 and once more in 1984, the year Ferrari's Michele Alboreto won carrying Gilles Villeneuve's number 27. Villeneuve died in a qualifying crash at the 1982 race.

The track takes its name from the nearby town and combines motor racing with cycling, allowing visitors to experience both race cars and professional cyclists. The venue serves as a host for regional and international competitions where drivers from different countries compete.

All vehicles must respect noise limits monitored at set measurement points to protect the surrounding area. Visitors should expect loud engine sounds during events and prepare for changing weather conditions that can affect outdoor viewing.

The circuit's name comes from the nearby village of Zolder, but it is also called Circuit Terlamen after the hamlet of Terlaemen beside it. The 24 Hours of Zolder, a stand-alone endurance race, is held around late August or early September.