TR3
The abbreviation TR3 stands for:
- Triumph TR3 , a car from the Triumph brand
- Tomb Raider III - Adventures of Lara Croft , the third part of the video game series with the archaeologist Lara Croft
- Triangle Radaroundectable Flying Object , refers to the triangular UFOs that appeared in the 80's. The number 3 is often only understood as a repeated reference to the triangular shape, but this is not correct.