The 13th Thailand National Games (Thai: กีฬาเขตแห่งประเทศไทย ครั้งที่ 13, also known as the 1979 National Games and the 1979 Inter-Provincial Games) were held in Lampang, Thailand from 23 to 29 December 1979, with competition in 14 sports and athletes from 10 regions. These games were the qualification for Thai athletes in the 1978 Asian Games.