| Abbreviation | Definition |
|---|---|
| RKO | Radical Kickass Offering |
| RKO | Radio Keith Orphium |
| RKO | Randall Keith Orton |
| RKO | Randalls Knock Out |
| RKO | Randell Keith Orton |
| RKO | Randy Keith Orton |
| RKO | randy killer orton |
| RKO | Randys Knock Out |
| RKO | Really Krusty Orifice |
| RKO | Rectum Killing Orgasm |
| RKO | Relativistic Klystron Oscillator |
| RKO | rip Kyles ores |
| RKO | Rural King Ohio |
| RKO | Russell K Osgood |
| RKP | Red Kite Prayer |
| RKPM | Reproducing kernel particle method |
| RKPS | Royal Kingdom of the Parts of Speech |
| RKQ | Randall Kane Quartet |
| RKR | Rajendra K Raj |
| RKR | Required Key Rest |