The Kyūshū Hikōki K.K. (九州飛行機 Kyūshū Aircraft Company Ltd) was a Japanese manufacturer of military aircraft during World War II. While it mainly manufactured other firms' designs, it was notable for the radical J7W "Shinden" fighter. Named after Kyushu island where the company was based.
The company originated from Fukuoka-based Watanabe Tekkōjo (Watanabe Steel Foundry), which started building aircraft in 1935. In 1943 the aircraft division was spun off as Kyūshū Hikōki, while the original company was renamed Kyūshū Heiki (Kyūshū Armaments).
After the war, the company was renamed Watanabe Jidōsha Kōgyō (Watanabe Automobile Industries) and manufactured automobile bodies and parts. It was dissolved in 2001.
- Watanabe E9W submarine-based reconnaissance floatplane
- Kyūshū K10W intermediate trainer
- Kyūshū K11W crew trainer
- Kyūshū Q1W Tokai anti-submarine patrol aircraft
- Kyūshū J7W Shinden pusher fighter
- Kyūshū K6W WS-103 seaplane for Royal Siamese Navy
- World Air Forces – Historical Listings Thailand (THL), archived from the original on 25 January 2012, retrieved 30 August 2012