| R | SMS/Chat: er |
| re | Internet: Landekode for Réunion |
| RL | SMS/Chat: Real life |
| ro | Internet: Landekode for Rumænien |
| ROFL | SMS/Chat: Rolling on the floor laughing |
| ROFLMAO | SMS/Chat: Rolling on the floor laughing my ass off |
| rs | Internet: Landekode for Serbien |
| RSN | SMS/Chat: Real soon now |
| ru | Internet: Landekode for Rusland |
| rw | Internet: Landekode for Rwanda |
| rødmusset | Gammel stavemåde af rødmosset. |