| Abbreviation | Definition |
|---|---|
| RTN | Register Transfer Notation |
| RTN | Register Transmission Notation |
| RTN | remember the name |
| RTN | Road to Ninja |
| RTN | Rough Turned and Normalized |
| RTN | Routing Transport Number |
| RTN | Rowan Television Network |
| RTNC | Radio-Télévision Nationale Congolaise |
| RTND | Real time Network Device |
| RTND | Resume The Next Day |
| RTND | Roll to Not Die |
| RTND | Rumah Teh Ndoro Donker |
| RTNR | Real time network routing |
| RTNR | Real Time Neutron Radiography |
| RTNR | Recall the Time of No Return |
| RTNR | Right ternary near rings |
| RTO | Ready Training Online |
| RTO | Real Time Ordering |
| RTO | Real Time Ownage |
| RTO | Really Terrible Orchestra |