| RASS | Rad Strassensimulator 
| Others |
| RASS | Radar Acoustic Sounding System
| Others |
| RASS | Radar Analysis Support System
| Others |
| RASS | Radio Acoustic Sounding System
| Others |
| RASS | Rafi Ali Soccer School
| Others |
| RASS | Ramon Allones Specially Selected
| Others |
| RASS | Ranging And Sounding System
| Others |
| RASS | Real Atlantic Super Store
| Others |
| RASS | Rear Active Steer System
| Others |
| RASS | Records Automation for Special Services
| Others |
| RASS | Reference and Adult Services Section
| Others |
| RASS | Remote Access Server Side
| Others |
| RASS | Remote Altimeter Setting Source
| Others |
| RASS | Renin Angiotensin System Study
| Others |
| RASS | Residential Appliance Saturation Study
| Others |
| RASS | Resource Allocation Selection System
| Others |
| RASS | Rhine Army Summer Show
| Others |
| RASS | Richmond Agitation and Sedation Scale
| Others |
| RASS | Richmond Agitation Sedation Scale
| Others |
| RASS | Richmond Agitation-Sedation Scale
| Others |
| RASS | Richmond Area Speleological Society
| Others |
| RASS | Risk Assessment for Sourcing Seafood
| Others |
| RASS | Risk Assessment Screening Spreadsheet
| Others |
| RASS | Risk Assessment Specialty Section
| Others |
| RASS | Risk Assessment Summer School
| Others |
| RASS | ROSAT All Sky Survey
| Others |
| RASS | Rushing At Silly Speeds
| Others |