One-day races and Classics Jelle Wallays (born 11 May 1989) is a Belgian former road cyclist, who competed as a professional from 2011 to 2023.

The start of his first year as a professional in 2011 was marred by a knee injury, however a few weeks after returning to competition he took the best result of his season at the Belgian National Road Race Championships, where he finished third behind Philippe Gilbert and Gianni Meersman.

[1] A winner of the Paris–Tours Espoirs in 2010, Wallays won the 2014 Paris–Tours having been in a breakaway that went in the opening kilometres of the 237.5 km (147.6 mi) race, making him the only rider to win the under-23 and elite men's editions of Paris–Tours.

In 2015, he won the Dwars door Vlaanderen by attacking a group of three other riders a kilometre away from the finish line.

[8] Wallays joined Lotto–Soudal for the 2016 season, with a focus on working as part of the team's sprint train.