Marc Fornell Mestres (born 26 January 1982) is a professional tennis player from Spain. He has captured two ATP Challenger Series/Tour titles. Fornell Mestres's career-high ATP singles entry ranking is World No. 236, achieved on 19 November 2007.
On 31 December 2018, he was provisionally suspended from tennis for leading a match-fixing group. In 2022, Fornell Mestres was convicted of match fixing and received a 2-year suspended prison sentence and a 450⬠fine. He was also fined $250,000 and banned from professional tennis for 22 years and 6 months by the International Tennis Integrity Agency.