Roon may refer to:
- Albrecht von Roon (30 April 1803 – 23 February 1879), a Prussian soldier and politician
- Two German ships was named after him:
- SMS Roon, an armored cruiser of World War I
- SS Roon, a passenger steamship launched in 1902
- Roon, a planet in the Star Wars universe
- Wayne Rooney, English footballer