| RASTA | Radio Air Shower Test Array 
| Others |
| RASTA | Radish Assimilation in Spaceflight Testbed Atmospheres
| Others |
| RASTA | Railway Assets Summarized Tracking Application
| Others |
| RASTA | Rasta Africa Stands Tall Alone
| Others |
| RASTA | Rescue And Sanctuary for Threatened Animals
| Others |
| RASTA | Reservoir Assisted Stormwater Treatment Area
| Others |
| RASTA | REST Architecture Solution Targeting Asp
| Others |
| RASTA | Rhinelander Area Silent Trails Association
| Others |
| RASTA | Righteous Americans Stand Together Always
| Others |
| RASTA | Rightious Apostolic Saving The Almighty
| Others |
| RASTA | Rightous African Standing Tall Alone
| Others |
| RASTA | Road And Streets Traffic Awareness
| Others |
| RASTA | Rochester Area Sports Trail Alliance
| Others |
| RASTA | Rochester Area Sports Trails Alliance
| Others |
| RASTA | Rural Agency for Social and Technological Advancement
| Others |