The Grain Griffin was a British carrier-based reconnaissance aircraft developed and built by the RNAS Marine Experimental Depot, Port Victoria, during the First World War.

A development of the unsuccessful Sopwith B.1 bomber, the Grain Griffin was a two-seat single-engined biplane that was built in small numbers for Britain's Royal Naval Air Service, being used operationally during the British intervention in the Russian Civil War.

These changes included new, longer-span, two-bay wings and a wider fuselage to give room to carry a radio for the observer.

[3] The first of the true Griffins, serial number N.100, powered by a 200 hp (149 kW) Sunbeam Arab engine, started testing in June 1918.

The Griffin was replaced in service by the Parnall Panther, which was chosen to equip the Royal Air Force's Fleet Spotter squadrons.