A grand tourer (Italian: gran turismo) (GT) is a high-performance luxury automobile designed for long-distance driving. The most common format is a two-door coupé with either a two-seat or a 2+2 arrangement.

The term derives from the Italian phrase gran turismo, homage to the tradition of the grand tour, used to represent automobiles regarded as grand tourers, able to make long-distance, high-speed journeys in both comfort and style. The English translation is grand touring.

Grand tourers differ from standard two-seat sports cars in typically being engineered as larger and heavier, emphasizing comfort over straight-out performance or spartan accommodations. Historically, most GTs have been front-engined with rear-wheel drive, which creates more space for the cabin than mid-mounted engine layouts. Softer suspensions, greater storage, and more luxurious appointments add to their driving appeal. Some very high-performance grand tourers, such as Ferrari 599 GTB Fiorano and Mercedes-Benz SLR McLaren make various compromises in the opposite direction while rivalling sports cars in speed, acceleration, and cornering ability, earning them the special designation supercars.