| RMS | named after the musicians: Ray Russell, Mo Foster & Simon Phillips 
| Others |
| RMS | Race Marque Systems
| Others |
| RMS | Rack Mount Server
| Others |
| RMS | Rack Mount Space
| Others |
| RMS | Rack Mount Systems
| Others |
| RMS | Radar Sensing Misacceleration Mitigation System
| Others |
| RMS | Radian Means per Second
| Others |
| RMS | Radnor Middle School
| Others |
| RMS | Rageing Mammoth Society
| Others |
| RMS | Rail Management Services
| Others |
| RMS | Railway Mail Service
| Others |
| RMS | Ramanujan Mathematical Society
| Others |
| RMS | Rambhakta Memorial School
| Others |
| RMS | Ramblewood Middle School
| Others |
| RMS | Ramp Metering System
| Others |
| RMS | Ramstein Air Base
| Others |
| RMS | Ramstein Airbase, Kaiserslautern, Germany
| Others |
| RMS | Random Map Script
| Others |
| RMS | Random Mapping Series
| Others |
| RMS | Random Motion Simulator
| Others |
| RMS | Random Music Sensor
| Others |
| RMS | Rate My Signal
| Others |
| RMS | Rate-Monotonic Scheduling
| Others |
| RMS | Rated Maximum Sinusoidal
| Others |
| RMS | Ratner, Miller, and Shafran Families Foundation
| Others |
| RMS | Raw Material Surcharge
| Others |
| RMS | Reading Motivation System
| Others |
| RMS | Real Marketing Solutions
| Others |
| RMS | Real Maximum Something
| Others |
| RMS | Real Modulated Signal
| Others |
| RMS | Really Massive Ship
| Others |
| RMS | Realtime Music Solutions
| Others |
| RMS | Rear Sensing Misacceleration Mitigation System
| Others |
| RMS | Receivables Management Service
| Others |
| RMS | Receivables Management Solutions
| Others |
| RMS | Received Message Store
| Others |
| RMS | Recipe Management Standard
| Others |
| RMS | Recipe Management Systems
| Others |
| RMS | Reconfigurable Manufacturing System
| Others |
| RMS | Record Management Services
| Others |
| RMS | Record Management System
| Others |
| RMS | Records Management strategy/ies
| Others |
| RMS | Records Management System
| Others |
| RMS | Records Management System(s)
| Others |
| RMS | Recovery Management Services
| Others |
| RMS | Recruitment Management System
| Others |
| RMS | Red Means Stop
| Others |
| RMS | Redundancy Management System
| Others |
| RMS | Reference Member State
| Others |
| RMS | Reflex Mini Sight
| Others |
| RMS | Reformed Mission Services
| Others |
| RMS | Regression Modeling Strategies
| Others |
| RMS | Regroupement des Militants Syndicaux
| Others |
| RMS | Regulatory Management System
| Others |
| RMS | Reims Management School
| Others |
| RMS | Related Moment Series
| Others |
| RMS | Release Management System
| Others |
| RMS | Reliability, Maintainability, and Safety
| Others |
| RMS | Reliable Multicast Service
| Others |
| RMS | Reliant Monitor Software
| Others |
| RMS | Reloadable Motor System
| Others |
| RMS | Relocated Module Segment
| Others |
| RMS | Remote Management Server
| Others |
| RMS | Remote Management Service
| Others |
| RMS | Remote Management Solution
| Others |
| RMS | Remote Management System
| Others |
| RMS | Remote Manipulator System
| Others |
| RMS | Remote Manipulator System (Subsystem)
| Others |
| RMS | Remote Monitoring Services
| Others |
| RMS | Remote Monitoring System
| Others |
| RMS | Remote Starter
| Others |
| RMS | Remote Technical Support
| Others |
| RMS | Renault Megane Scenic
| Others |
| RMS | Renault Multi Sense
| Others |
| RMS | Rental Management Software
| Others |
| RMS | Republik Maluku Selatan
| Others |
| RMS | Requirements Management System
| Others |
| RMS | Residential Management Services
| Others |
| RMS | Residential Media Systems
| Others |
| RMS | Residential Mortgage Services
| Others |
| RMS | Resolution Management System
| Others |
| RMS | Resource Management Scheduling
| Others |
| RMS | Resource Management Service
| Others |
| RMS | Resource Management Suite
| Others |
| RMS | Resource Management System
| Others |
| RMS | Resource Monitoring Subsystem
| Others |
| RMS | Resource Monitoring System
| Others |
| RMS | Respiratory Monitoring System
| Others |
| RMS | Retail Management System
| Others |
| RMS | Retail Merchandise System
| Others |
| RMS | Retail Merchandising Services
| Others |
| RMS | Revenue Management Solutions
| Others |
| RMS | Review Management Staff
| Others |
| RMS | Rhabdomyosarcoma
| Others |
| RMS | Rich Media Session
| Others |
| RMS | Richard M Stallman
| Others |
| RMS | Richard Matthew Stallman
| Others |
| RMS | Richard Matthew Stallman, activist
| Others |
| RMS | Richland Middle School
| Others |
| RMS | Richmond Middle School
| Others |
| RMS | Ridgely Middle School
| Others |
| RMS | Rights Management Services
| Others |
| RMS | Risk Management and Safety
| Others |
| RMS | Risk Management Solution
| Others |
| RMS | Risk Management Solutions
| Others |
| RMS | Risk Management System
| Others |
| RMS | Ritenour Middle School
| Others |
| RMS | River Management Society
| Others |
| RMS | Rivera Middle School
| Others |
| RMS | Riverside Middle School
| Others |
| RMS | Riverton Middle School
| Others |
| RMS | Road Management System
| Others |
| RMS | Roads & Maritime Services
| Others |
| RMS | Roads and Maritime Services (NSW, Australia) (replaced RTA 2011?)
| Others |
| RMS | Robert May's School
| Others |
| RMS | Robertsville Middle School
| Others |
| RMS | Robot Management System
| Others |
| RMS | Rockcliffe Middle School
| Others |
| RMS | Rockford Middle School
| Others |
| RMS | Rocky Mountain Sprints
| Others |
| RMS | Roll Music Studios
| Others |
| RMS | Romulus Middle School
| Others |
| RMS | Ron Montris Stumped
| Others |
| RMS | Rooms
| Others |
| RMS | Roosevelt Middle School
| Others |
| RMS | Root Mean Square
| Others |
| RMS | Root Mean Squared
| Others |
| RMS | Root-Mean-Square
| Others |
| RMS | Rose Marie Swift
| Others |
| RMS | Rosemount Middle School
| Others |
| RMS | Rostral Migratory Stream
| Others |
| RMS | Rotana Media Services
| Others |
| RMS | Rotary and Mission Systems
| Others |
| RMS | Rotating Machinery Services
| Others |
| RMS | Rotolo Middle School
| Others |
| RMS | Rotronic Monitoring System
| Others |
| RMS | Rouse Matrix Systems
| Others |
| RMS | Royal Mail Ship
| Others |
| RMS | Royal Mail Steamer
| Others |
| RMS | Royal Mail Steamship
| Others |
| RMS | Royal Marine Service
| Others |
| RMS | Royal Marine Steamer
| Others |
| RMS | Royal Medical Society
| Others |
| RMS | Royal Meteorological Society
| Others |
| RMS | Royal Microscopical Society
| Others |
| RMS | Russian Mineralogical Society
| Others |