| RBTL | Reading Between The Lines | - | Sms Text Smileys and Emoticons |
| REHI | Hello Again | - | Sms Text Smileys and Emoticons |
| RESQ | Rescue | - | Sms Text Smileys and Emoticons |
| RFC | Request For Comment | - | Sms Text Smileys and Emoticons |
| RFD | Request For Discussion | - | Sms Text Smileys and Emoticons |
| RL | Real Life - I.e. When Not Chatting | - | Sms Text Smileys and Emoticons |
| ROFL | Roll On Floor Laughing | - | Sms Text Smileys and Emoticons |
| ROR | Raffing Out Roud (from ScoobyDoo = "laughing Out Loud") | - | Sms Text Smileys and Emoticons |
| ROTFL | Rolling On The Floor Laughing | - | Sms Text Smileys and Emoticons |
| ROTFLMAO | Rolling On The Floor Laughing My Ass Off | - | Sms Text Smileys and Emoticons |
| ROTFLMBO | Rolling On The Floor Laughing My Butt Off | - | Sms Text Smileys and Emoticons |
| RPG | Role-playing Games | - | Sms Text Smileys and Emoticons |
| RSN | Real Soon Now | - | Sms Text Smileys and Emoticons |
| RT | Real Time | - | Sms Text Smileys and Emoticons |
| RTFM | Read The F*cking Manual | - | Sms Text Smileys and Emoticons |
| RTM | Read The Manual | - | Sms Text Smileys and Emoticons |
| RUOK | Are You OK? | - | Sms Text Smileys and Emoticons |
| RYO | Roll Your Own | - | Sms Text Smileys and Emoticons |
