Found 5 full forms for USIG
| Term | Full Form | Category |
|---|---|---|
| USIG | United States International Grantmaking 
| Others |
| USIG | United States International Grantmaking Project
| Others |
| USIG | Urology Student Interest Group
| Others |
| USIG | Urology Surgery Interest Group
| Others |
| USIG | Utility Special Interest Group
| Others |