The Volvo P1800 (pronounced eighteen-hundred) is a 2+2, front-engine, rear-drive sports car manufactured and marketed by Volvo Cars between 1961 and 1973. Originally a coupé (1961–1972), it was also offered in a shooting brake configuration toward the end of its production (1972–1973).[4][5][6] Styling was by Pelle Pettersonunder the tutelage of Pietro Frua when Frua's studio was a subsidiary of the Italian Carrozzeria Ghia,[7] and the mechanicals were derived from Volvo's Amazon/122series.

Marketed as a touring car rather than a sports car,[8] the P1800 became widely known when driven by British actor Roger Moore in the television series The Saint, which aired from 1962 to 1969. In 1998, an 1800S owned by Irv Gordon (1940–2018) was certified as the highest mileage private vehicle driven by the original owner in non-commercial service—having exceeded 3.25 million miles (over 5.23 million km) as of his death in 2018