Philippe Gilbert (born 5 July 1982) is a Belgian professional road bicycle racer, who currently rides for UCI WorldTeam Lotto–Soudal. Gilbert is best known for winning the World Road Race Championships in 2012, and for being one of two riders, along with Davide Rebellin, to have won the three Ardennes classics – the Amstel Gold Race, La Flèche Wallonne and Liège–Bastogne–Liège – in a single season, which he accomplished in 2011. Gilbert also finished the 2011 season as the overall winner of the UCI World Tour.
A Classics specialist, Gilbert has won several classic cycle races, including Paris–Tours twice (2008, 2009), the Giro di Lombardia twice (2009, 2010), the Amstel Gold Race four times (2010, 2011, 2014, 2017), La Flèche Wallonne (2011), Liège–Bastogne–Liège (2011), the Clásica de San Sebastián (2011), the Tour of Flanders (2017), and Paris–Roubaix (2019). He is the second person (and first Belgian) in history to win all three Ardennes classics in a single year. In 2017, Gilbert became the third rider after Eddy Merckx (1975) and Jan Raas (1979) to win both the Tour of Flanders and the Amstel Gold Race in the same year.