The Opel Calibra, also known as the Vauxhall Calibra in the United Kingdom, the Chevrolet Calibra in South America, and the Holden Calibra in Australia and New Zealand is a sports car engineered and produced by German automaker Opel between 1989 and 1997, but sold until 1999 in the UK. The Calibra was introduced to counter the Japanese sports coupes of the late-1980s and early-1990s, and is based around the running gear of the first-generation Opel Vectra, which had been launched in 1988. Calibra production was based in the Opel factory in Rüsselsheim, Germany, and the Valmet Automotive factory in Uusikaupunki, Finland, where production was consolidated in November 1995.

The Opel Calibra was styled by the German Designer, Erhard Schnell. As a front-wheel drive coupé based on the Vectra chassis, its ride and handling are not significantly better than that of the large family car from which it grew. On its launch in 1989, the Calibra was the most aerodynamic production car in the world. This was glorified in an advert on British television during 1990.