A cafe racer, originally pronounced "kaff racer" (English pronunciation: /ˈkæff rāsər/), is a term used for a type of motorcycle, as well as the motorcyclists who ride them. Both meanings have their roots in the 1960s British Rocker or Ton-up boy subculture, although the type of motorcycles were also common in Italy, France and other European countries. The term, which originally arose as an insult from motorcycle enthusiasts towards riders who they thought were playing at being a road racer but merely parked outside cafes, refers to a style of motorcycles that were and are used for fast rides from one transport caff or coffee bar to another.

The cafe racer is a motorcycle that has been modified for speed and handling rather than comfort. Cafe racers' bodywork and control layout typically mimicked the style of contemporary Grand Prix roadracers featuring an elongated fuel tank, often with dents to allow the riders knees to grip the tank, low slung racing handlebars, and a single, rearwardly mounted, humped seat.