The Jaguar XJ-S (later the Jaguar XJS) is a luxury grand tourer produced by the British manufacturer Jaguar. The XJ-S replaced the legendary E-Type (or XK-E) in September 1975, and was based on the XJ saloon. It had been developed as the XK-F, though it was very different in character from its predecessor. Although it never had quite the same sporting image, the XJ-S was a competent grand tourer, and more aerodynamic than the E-Type.

From July 1981, XJ-S received the new High-Efficiency engine for much better economy; as a by-product, power was increased to 220 kW (295 hp) or 196 kW (263 hp) in North America. At the same time, the XJ-S received changes to its exterior and interior (new five-spoke alloy wheels, chrome inserts on the upper part of the bumpers, wood inserts on dashboard and door cappings). In 1982, the new V12 XJ-S won first and second at the RAC Tourist Trophy race at Silverstone.