The 4th Thailand Regional Games (Thai: กีฬาเขตแห่งประเทศไทย ครั้งที่ 4, also known as the 1970 National Games and the 1970 Interprovincial Games) were held in Nakhon Ratchasima, Thailand from 1 to 7 November 1970, with contests in 12 sports. These games were the qualifications for the 1970 Asian Games. At the medal tally, Thailand was third after Japan and South Korea.