The Volvo S80 is a high-end executive car produced by the Swedish automaker Volvo and was introduced in 1998 as a replacement for the rear-wheel drive Volvo 960/S90 sedan. Every single Volvo S80 has been built at the Torslanda Plant (Torslandaverken) in Gothenburg, Sweden. Unlike almost all other Volvo models, it did not have a station wagon version for its first generation. Now, the third generation V70 wagon is marketed as the estate version for the second generation S80 sedan. All of this is a part of a major product overhaul at Volvo, including a most luxurious large estate and sedan.

Upon its debut it was notable for being one of the first Volvos to depart from the company's traditionally boxy, conservative styling. The S80's styling, with its pronounced beltlines and tail lights that narrow and go from curves to points as they go up, has been adopted throughout the Volvo line, especially on the S60 and S40 sedans.