TR 3

TR 3 may refer to:

• Lyulka TR-3, a Soviet jet engine designed in the late 1940s
• Triumph TR3, an automobile from the United Kingdom
• TR3, the Tim Reynolds Trio
• TR-3A Black Manta, an alleged USAF spyplane and black program
• TR-3B Astra, a UFOlogist speculated USAF spyplane
• Tomb Raider III: Adventures of Lara Croft, the third game in the Tomb Raider series.
• TR.3, see Orenda Engines
• TR3, a postal district in the TR postcode area