The Austin-Healey 100 is a sports car built between 1951 and 1959 by the British Motor Corporation. It was developed by Donald Healey to be produced in-house by Healey's company on Austin A90 Atlantic mechanicals. Healey built a single "Healey 100" for the 1952 London Motor Show, and the design impressed BMC, owner of Austin, so much that the firm decided to bring production in-house.

The "100" name comes from Donald Healey, who named it after the fact that this was one of the few cars of the era which could achieve 100 mph