Grant Supaphongs (born 12 April 1976) is a Thai racing driver currently competing in the TCR International Series and TCR Thailand Touring Car Championship.
Having previously competed in the Thailand Super Series.
After a four-year hiatus, he returned to racing in 2014 where he switched to GTC class in the Thailand Super Series, he finished second in the standings that year.
He switched to the all new 2016 TCR Thailand Touring Car Championship the following year.
[1] In August 2016 it was announced that he would race in the TCR International Series, driving a SEAT León Cup Racer for Kratingdaeng Racing Team.