5R

5R may refer to :

• Yaesu VX-5R, an ultra-compact amateur radio transceiver
• IRS Aero IATA designator
• Karthago Airlines IATA designator
• Madagascar aircraft registration code
• A standard consumer print size for photographs. See Standard photographic print sizes.
• 5R, the production code for the 1980 Doctor Who serial Full Circle
• 5R Fulton Rapid, a San Francisco bus line

• R5 (disambiguation)