A V8 is an engine with eight cylinders mounted on the crankcase in two banks of four cylinders.

V8 may also refer to:

Computers V8 (JavaScript engine), an open-source JavaScript engine ITU-T V.8, a telecommunications recommendation V8 Unix, the eighth edition of Research Unix from 1985

Vehicles Aston Martin V8, 1969 two-door coupe-type automobile manufactured in the United Kingdom Audi V8, a 1988 large luxury saloon/sedan Fokker V.8, a German quintuplane V8 Supercars, an Australian touring car racing category MTX Tatra V8, a supercar Rambler V8, a passenger car

Other V8 (band), a heavy metal band V8 (duo), a South Korean duo V8 (EP), a 2026 extended play by the Seventeen sub-unit V8 V8 (drink), a vegetable juice made by Campbell Soup Company V8 Marlborough Street, a grid road in the new town of Milton Keynes, England Vigilante 8, a vehicular combat game produced by Luxoflux Video8, a generation of 8mm video format V8 (TV channel), a defunct Dutch television channel

See also ATC code V08 Contrast media, a subgroup of the Anatomical Therapeutic Chemical Classification System V8 engine (disambiguation) 8V (disambiguation)