| RSG | EPOC Compiled Resource Header 
| Others |
| RSG | Radio Sonder Grense
| Others |
| RSG | Radio Sonder Grense (South African Radio Station network)
| Others |
| RSG | Rail Supply Group
| Others |
| RSG | Rainer Schaller Global
| Others |
| RSG | Rainham School for Girls
| Others |
| RSG | Rallye Sport Gemeinschaft
| Others |
| RSG | Random Seed Glitchless
| Others |
| RSG | Random Sentence Generator
| Others |
| RSG | Rare Species Guide
| Others |
| RSG | Re Structure Group
| Others |
| RSG | Ready Set Go
| Others |
| RSG | Ready Steady Go
| Others |
| RSG | Rear Splash Guards
| Others |
| RSG | Rec Sport Golf
| Others |
| RSG | Recovery Storage Group
| Others |
| RSG | Reference Signal Generator
| Others |
| RSG | Reforming States Group
| Others |
| RSG | Regional Student Groups
| Others |
| RSG | Regional Support Command Group
| Others |
| RSG | Regional Support Group
| Others |
| RSG | Reinsurance Systems Group
| Others |
| RSG | Reintroduction Specialist Group
| Others |
| RSG | Reliable Software Group
| Others |
| RSG | Replacement Steam Generators
| Others |
| RSG | Research Scholar Grants
| Others |
| RSG | Research Strategy Group
| Others |
| RSG | Residential Student Government
| Others |
| RSG | Resilience Strength and Growth
| Others |
| RSG | Resilient Sommelier and Ganesh
| Others |
| RSG | Resource Solutions Group
| Others |
| RSG | Resource Systems Group
| Others |
| RSG | Resources Scrutiny Group
| Others |
| RSG | Responsible Service of Gambling
| Others |
| RSG | Responsible Service of Gaming
| Others |
| RSG | Responsible Structured Growth
| Others |
| RSG | Responsibly Sourced Gas
| Others |
| RSG | Retail System Group
| Others |
| RSG | Retirement Solution Group
| Others |
| RSG | Retirement Solutions Group
| Others |
| RSG | Retirement Strategies Group
| Others |
| RSG | Revenue Support Grant
| Others |
| RSG | Reverse Shell Generator
| Others |
| RSG | Revision Steering Group
| Others |
| RSG | Rhythmic Sportive Gymnastics
| Others |
| RSG | Riemengetriebener Starter Generator
| Others |
| RSG | Rifled Slug Gun
| Others |
| RSG | Risk Sciences Group
| Others |
| RSG | Road Safety Group
| Others |
| RSG | Road Speed Governor
| Others |
| RSG | Road Surface Generator
| Others |
| RSG | Rockstar Games
| Others |
| RSG | Roland Systems Group
| Others |
| RSG | Roofing Supply Group
| Others |
| RSG | Rotorcraft Services Group
| Others |
| RSG | Ruby Scene Graph
| Others |
| RSG | Ryan Specialty Group
| Others |
| RSG | Serra Pelada, PA, Brazil
| Others |