1R
# 1R

1R may refer to:

* Complement component 1R
* Intelsat 1R, a communications satellite
* Yaesu VX-1R, a radio transceiver
* OneRepublic, a pop-rock/alternative band from Colorado, United States
* SSH 1R (WA), a former highway that is now Washington State Route 504
* 1R (chromosome)
