Tokachi International Speedway (十勝インターナショナルスピードウェイ) is a 5.091km motor racing circuit in Takikubo, Sarabetsu, Hokkaido, Japan.
The circuit has two main configurations, the Grand Prix Course (グランプリコース), 5.091km, and the Clubman Course (クラブマンコース), 3.405km.
Starting in 1995, there has been a 24-hour N1 class race in July each year. In 2007, a Toyota Supra took the first win for a hybrid vehicle.
In 2004, a regular Japan GT Championship race was held at the Clubman Course. And also a regular Formula Nippon race in 1995 and 1996 were held at the Grand Prix Course.
The track is also used by the Renault Eurocup, and for karting.