Thomas Mermillod-Blondin (born 3 January 1984) is a former World Cup alpine ski racer from France. Born in Annecy, Haute-Savoie, he primarily competed in super-G, but his best results were in the super combined event: he took five of his six World Cup podiums in combined, with the other coming in super-G. Mermillod-Blondin made his World Cup debut in 2007 and represented France at the 2010 Winter Olympics in Vancouver and the 2011 World Championships. He made a total of 179 World Cup starts in his career. In February 2019 Mermillod-Blondin announced that he would retire from competition following a combined race in Bansko, Bulgaria that month.