Jay Robert Thomson (born 12 April 1986) is a South African former professional racing cyclist, who rode professionally between 2007 and 2020, for the Team Konica Minolta, Fly V Australia, Bissell, UnitedHealthcare and NTT Pro Cycling teams. In 2013 he won the South African National Road Race Championships. He rode in the 2014 Vuelta a España. He was named in the start list for the 2016 Giro d'Italia. In July 2018, he was named in the start list for the 2018 Tour de France.