| Term | Full Form | Category |
|---|---|---|
| IWPA | I Wasn't Paying Attention | Others |
| IWPA | Indian Wind Power Association | Others |
| IWPA | International Weight Pull Association | Others |
| iwpa | International Wood Products Association | Others |
| IWPA | International Working People's Association | Others |
| IWPA | Iowa West Public Art | Others |
| IWPA | Israel Wine Producers Association | Others |