ARM may stand for:
Most likely:
- Acorn RISC Machine
- Adjustable rate mortgage
- Annotated Reference Manual (C++)
- Accelerated reply mail (USPS)
- Accelerated Response Motoring
- Accredited Resident Manager
- Acquisition risk management
- Ada Reference Manual
- Ada Requirements Methodology
- Administrative Rules of Montana
- Advanced RISC Machine
- Advanced RISC Machines Ltd. (arm.com)
- Afrikaner Resistance Movement (South Africa)
- Age-related maculopathy (ophthalmology)
- Amalgamated Regional Militia (Known Space)
- American Rehabilitation Ministries (arm.org)
- Anhysteretic remanent magnetization
- Anti-radiation missile
- Argentina Moneda Nacional
- Association of Radical Midwives (UK)
- Association Des Radio Amateurs De Monaco
- Association of Recovering Motorcyclists
- Association for Rehabilitation Marketing
- Association of Remedial Masseurs (Australia)
- Association of Reproductive Managers
- Association for Research on Mothering
- Association of Rotational Molders
- Atalla Resource Manager (HP)
- Atmospheric Radiation Measurement Program (DOE, arm.gov)
- Atomic Resolution Microscope (NCEM)