Sopwith Pup
- Nation: Great Britain
- Manufacturer: Sopwith Aviation Company
- Designer: Herbert Smith
- Dates of Service: 1916-1917
- Number Built: 1,770
- Speed: 106 mph
- Range: 3 hours
- Ceiling: 18,500 feet
- Wingspan: 26 feet, 6 inches
- Engine: 1× Le Rhone air-cooled rotary engine, 80 or 100 hp
- Armament: 1 × .303 in (7.62 mm) Vickers machine gun
- Notes: After aiding in turning back "Bloody April," the Royal Flying Corps found that the Sopwith Pup was quickly being outclassed by the newest German fighters. As a result, many were withdrawn to Britain to serve in a home defense role.
