| Abbreviation | Definition |
|---|---|
| IMRF | International Multisensory Research Forum |
| IPPF | Independent Power Producers Forum |
| IPPF | International Public Policy Forum |
| IRF | Independent Research Forum |
| IRF | International Regulators Forum |
| IRF | International Regulators' Forum |
| ISF | Information Security Forum |
| ISF | International Sepsis Forum |
| ISF | The Information Security Forum |
| ISSF | International Stainless Steel Forum |
| ITF | International Transport Forum |
| ITRF | International Trade Remedies Forum |
| IWCF | International Well Control Forum |
| IWF | Independent Womens Forum |
| IWF | Independent Women's Forum |
| IWF | India Water Forum |
| IWF | International Women's Forum |
| JAAF | Joint Apparel Association Forum |
| JBF | John Byrne Forum |
| JNDF | Japan New Diamond Forum |