The Britten Sheriff SA-1[1] was a light twin-piston engine aircraft developed in the United Kingdom in the 1970s.

Aircraft engineer John Britten, who had been instrumental in founding Britten-Norman, left the company in February 1976.

It was a low-wing cantilever monoplane with twin tails and a tractor engine in a nacelle on each wing.

Of all-metal construction (with a fiberglass nose section on the fuselage), it was fitted with fixed tricycle undercarriage and accommodated the pilot and three passengers under a bubble canopy.

Although Centrul National Aeronautic of Romania was interested in producing the aircraft it could not fund development.