The Studebaker Avanti is a personal luxury coupe manufactured and marketed by Studebaker Corporation between June 1962 and December 1963. A halo car for the maker, it was marketed as "America's only four-passenger high-performance personal car."

Described as "one of the more significant milestones of the postwar industry", the Raymond Loewy-designed car offered safety features and high-speed performance. Called “the fastest production car in the world” upon its introduction, a modified Avanti reached over 270 km/h with its supercharged 4,740 cc R3 engine at the Bonneville Salt Flats. In all, it broke 29 world speed records at the Bonneville Salt Flats.

Following Studebaker's discontinuation of the model, a succession of five ventures manufactured and marketed derivatives of the Avanti model through 2006. These ventures licensed intellectual property and, in some cases procured parts, through arrangements with the successors to the Studebaker assets.

The Avanti was developed at the direction of Studebaker president, Sherwood Egbert, who took over in February 1961. The car's design theme was "allegedly doodled by Egbert on the proverbial back of an envelope during an airplane flight." Egbert's 'doodle' was to answer Ford's Thunderbird and an attempt to improve the automaker's sagging performance. Designed by Raymond Loewy's team of Tom Kellogg, Bob Andrews, and John Ebstein on a 40-day crash program, the Avanti featured a radical fiberglass body mounted on a modified Studebaker Lark 109-inch convertible chassis and powered by a modified 289 Hawk engine. A Paxton supercharger was offered as an option.

After the closure of Studebaker's factory on December 20, 1963, Competition Press reported: "Avantis will no longer be manufactured and contrary to the report that there are thousands gathering dust in South Bend warehouses, Studebaker has only five Avantis left. Dealers have about 2500, and 1600 have been sold since its introduction."