| GSIC | Gel Sealed Inline Closure 
| Others |
| GSIC | Geographic and Statistical Information Center
| Others |
| GSIC | Georgia School for Innovation and the Classics
| Others |
| GSIC | Global Scientific Information and Computing
| Others |
| GSIC | Global Sports Innovation Center
| Others |
| GSIC | Global Sportstec Innovation Conference
| Others |
| GSIC | Global Strategy and Investment Consulting
| Others |
| GSIC | Global Systems Integrator Congress
| Others |
| GSIC | Global Systems Integrators Congress
| Others |
| GSIC | Goa State Information Commission
| Others |
| GSIC | Gold Standard Investment Club
| Others |
| GSIC | Golden State Insulator Club
| Others |
| GSIC | Golden Summit Immigration Consultancy
| Others |
| GSIC | Graduate School of Information and Communication
| Others |
| GSIC | Graduate Student Issues Committee
| Others |
| GSIC | Graduate Students in Communication
| Others |
| GSIC | Greater Southwest Industrial Corridor
| Others |
| GSIC | Group-wise Successive Interference Cancellation
| Others |