The Lamborghini Countach  is a rear mid-engine, rear-wheel-drive sports car produced by the Italian automobile manufacturer Lamborghinifrom 1974 until 1990. It is one of the many exotic designs developed by Italian design house Bertone, which pioneered and popularized the sharply angled "Italian Wedge" shape.

The style was introduced to the public in 1970 as the Lancia Stratos Zero concept car. The first showing of the Countach prototype was at the 1971 Geneva Motor Show, as the Lamborghini LP500 concept.[7]

The "Countach" nameplate was reused for the Sián-based limited-production hybrid-electric model called the Countach LPI 800-4 in 2021.    The development of the Countach was initiated by Ferruccio Lamborghini with the goal of creating a successor to the Miura. The Miura was widely acclaimed after its introduction in 1966, but by 1970 new competitors including the Ferrari Daytona had been introduced to the market, and the Miura was showing its age. Chief engineer Paolo Stanzani and his staff began work on the Miura successor in 1970 under the project name "LP112." From the beginning of the project, Stanzani's collaborators included test driver Bob Wallace, assistant engineer Massimo Parenti and designer Marcello Gandini of Bertone.