| MRSS | Main Receiving Sub Station 
| Others |
| MRSS | Main Recurring Sub Station
| Others |
| MRSS | Malaysian Remote Sensing Society
| Others |
| MRSS | Maple Ridge Secondary School
| Others |
| MRSS | Marine Radio Safety Service
| Others |
| MRSS | Market Research Society Singapore
| Others |
| MRSS | Media Really Simple Syndication
| Others |
| MRSS | Media Rich Site Summary
| Others |
| MRSS | Media RSS similar to subscriptions
| Others |
| MRSS | Median Ranked Set Sample
| Others |
| MRSS | Melbourne Return to Sports Score
| Others |
| MRSS | Melbourne Rudolf Steiner School
| Others |
| MRSS | Memorize Random Song Situation
| Others |
| MRSS | Methicillin Resistant Staphylococcus Strains
| Others |
| MRSS | Metropolitan Region of San Salvador
| Others |
| MRSS | Microsoft Relationship Sales Solution
| Others |
| MRSS | Midwest Religion and Science Society
| Others |
| MRSS | Minimum Rate Supporting Scheduler
| Others |
| MRSS | Missouri Recovery Support Specialist
| Others |
| MRSS | Mobile Range Safety System
| Others |
| MRSS | Mobile Response and Stabilization Services
| Others |
| MRSS | Mobile Response Stabilization Service
| Others |
| MRSS | Modified Ramsay Sedation Scale
| Others |
| MRSS | Modified Rodnan Skin Score
| Others |
| MRSS | Modified Root Sum Square
| Others |
| MRSS | Morningside Rehabilitation Status Scale
| Others |
| MRSS | Muenster Red Sky Survey
| Others |
| MRSS | Multi Resolution Spectrum Sensing
| Others |
| MRSS | Music Recording Studio Security
| Others |
| MRSS | San Joaquin de Abangar, Bolivia
| Others |