| Acronym | Definition |
|---|
| RML | Right Middle Lobe (lungs) |
| RML | Rocky Mountain Laboratories (Golden, CO) |
| RML | Ray Mallock, Ltd. (automotive/racing engineering company; UK) |
| RML | Regional Medical Library (funded by the National Library of Medicine, USA) |
| RML | Read My Lips |
| RML | Rocko's Modern Life (Nickelodeon TV show) |
| RML | Revolution in Military Logistics |
| RML | Regional Medical Laboratory (Tulsa, OK) |
| RML | Rifled Muzzle Loading (gun) |
| RML | Radio Mont Liban (French: Mount Lebanon Radio; radio station; Beirut, Lebanon) |
| RML | Armenian International Airways (ICAO code) |
| RML | Restricted Maximum Likelihood |
| RML | Rule Markup Language |
| RML | Relational Markup Language |
| RML | Research Machines Limited |
| RML | Rencontres Musicales en Lorraine (French: Musical Encounters in Lorraine) |
| RML | Relative Movement Line (navigation) |
| RML | Radioactive Material Loss |
| RML | Rocky Mountain Llamas (Longmont, CO ranch) |
| RML | Radio Metallurgical Laboratory |
| RML | Remember My Love |
| RML | Random Microlenticular |
| RML | Radiating Matched Load |
| RML | Radar/Radio Microwave Link |
| RML | Remote Microwave Link |
| RML | Raynworth Marketing Limited (Switzerland) |
| RML | Road-Mobile Launcher |
| RML | Remote Maintenance Loopback (Hekimian) |
| RML | Rail Mobile Launcher (Strategic Missiles) |
| RML | Refrigerant Moisture Level |
| RML | Recherche Marketing en Ligne (French: Online Marketing Research) |
| RML | River Management Line (environmental management) |
| RML | RiskMetrics Markup Language (RiskMetrics Group) |
| RML | Reverse Mortgage Loan (elder finance) |
| RML | Residential Mortgage Loan |
| RML | Ram Manohar Lohia (Indian hospital) |
| RML | Recovered Mass Loss |
| RML | Ruth Miskin Literacy (education) |
| RML | Regional or Minority Language (EU) |