Mark Stewart (born 25 August 1995) is a Scottish road and track cyclist, who currently rides for UCI ProTeam Team Solution Tech–Vini Fantini.

[5] Representing Great Britain and Scotland at international competitions, Stewart won the bronze medal at the 2016 UEC European Track Championships in the team pursuit.

[8] Following the travel restrictions brought about by the COVID-19 pandemic in 2020, Stewart based himself in New Zealand,[9] having been in the country to visit his partner Emma Cumming,[10] following the 2020 UCI Track Cycling World Championships held in Germany.

[18] On 4 July 2024, Stewart was name the travelling reserve on the Team GB men's track endurance squad for the Paris 2024 Olympic Games.

In the madison he took the place of Hayter, who had withdrawn due to a thigh strain suffered in the team pursuit.