| ARM | Adjustable Rate Mortgage | - | Chatting Acronyms |
| ARM | Advanced Reservoir Management (petroleum) | - | Computer Acronyms(common) |
| ARM | Agricultural Runoff Model | - | Computer Acronyms(common) |
| ARM | Anhysteretic Remanent Magnetization | - | Computer Acronyms(common) |
| ARM | Area Radiation Monitoring | - | Computer Acronyms(common) |
| ARM | Atmospheric Radiation Measurement | - | Computer Acronyms(common) |
| ARM | Atomic Resolution Microscope | - | Computer Acronyms(common) |
| ARM | Advanced (Acorn) RISC Machine | - | Human Genome |
| ARM | Advanced RISC Machines Ltd | - | Human Genome |
| ARM | Anti-Radiation Missile -Armenia (ISO 3166 Trigram) | - | Astronomy |
| ARM | Atmospheric Radiation Measurement Program | - | Business and Finance |
