In road bicycle racing, a Grand Tour is one of the three major European professional cycling stage races: Giro d'Italia, Tour de France, and Vuelta a España. Collectively they are termed the 'Grand Tours', and all three races are similar in format being three week races with daily stages.

The Giro d'Italia is generally run in May, the Tour de France in July, and the Vuelta a España in late August and September.

The Tour de France is the oldest and most prestigious in terms of points accrued to racers of all three, and is the most widely attended annual sporting event in the world. The Tour, the Giro and the Road World Cycling Championship make up the Triple Crown of Cycling.

The three Grand Tours are men's events, and no three week races exist on the women's road cycling circuit.

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