| Term | Full Form | Category |
|---|---|---|
| IGAS | Icetratt Global Advisory Solutions | Others |
| IGAS | Initiative Group Alpbach Sarajevo | Others |
| IGAS | International Grapho Analysis Society | Others |
| IGAS | invasive group A streptococcus | Others |
| IGAS | Irish Graduates Association of Singapore | Others |
| IGAS | Irish Grain Assurance Scheme | Others |
| IGAS | Irish Group Analytic Society | Others |