| GSA | General Services Administration | - | Computer Acronyms(common) |
| GSA | Geological Society Of America | - | Computer Acronyms(common) |
| GSA | Generalized Sudden Approximation | - | Computer Acronyms(common) |
| GSA | Generator-state Approach (in Many-body Quantum Theory) | - | Computer Acronyms(common) |
| GSA | Genetics Societies Of America | - | Medical |
| GSA | General Services Administration | - | Organizations |
| GSA | U.S. General Services Administration | - | Astronomy |
| GSA | General Services Administration | - | Business and Finance |
| GSA | General Services Administration
| - | Human Genome |
