Stephen Philip Cummings (born 19 March 1981) is an English former racing cyclist, who rode professionally between 2005 and 2019 for the Landbouwkrediet–Colnago, Discovery Channel, Barloworld, Team Sky, BMC Racing Team and Team Dimension Data squads, and rode for Great Britain at the Summer Olympic Games, the UCI Road World Championships, and the UCI Track Cycling World Championships.

During his professional road racing career, Cummings took seventeen victories, including Grand Tour stage wins at the 2012 Vuelta a España, the 2015 Tour de France and the 2016 Tour de France. He won both the British National Road Race Championships and the British National Time Trial Championships in 2017, and also won stages of the Tour of Beijing, Tirreno–Adriatico, Tour of the Basque Country and Critérium du Dauphiné races at UCI World Tour level. On the track, Cummings won gold medals in the team pursuit at both the 2005 UCI Track Cycling World Championships and the 2006 Commonwealth Games, and a silver medal in the same event at the 2004 Olympic Games in Athens.

Since retiring from racing, Cummings has worked as a directeur sportif for UCI WorldTeam Ineos Grenadiers.