CR1
# CR1

CR1 or CR-1 may refer to:

## Vehicles

### Aircraft

* Cessna CR-1, an American air racer
* Fiat CR.1, a 1920s Italian biplane fighter aircraft

### Automobiles

* Climax CR1, a 2015 British sports car
* Aquila CR1, a 2008–present Danish race car

## Other uses

* Complement receptor 1, a protein
* CR-1 visa, a United States immigrant visa that allows a spouse of a US citizen to enter as a conditional permanent resident
* CR-1 gene is about Teratocarcinoma-derived growth factor 1
