| Abbreviation | Definition |
|---|---|
| IFOA | Integrated Forestry Operations Approval |
| IFOA | Integrated Forestry Operations Approvals |
| IFPA | Innovative Forestry Practices Agreement |
| IFQRG | International Forestry Quarantine Research Group |
| IFRIT | Institute of Forest Resource Information Technique |
| IFRP | Idaho Forest Restoration Partnership |
| IFSA | International Forestry Students Association |
| IIAF | Instituto de Investigaciones Agropecuarias y Forestales |
| IITF | International Institute For Tropical Forestry |
| IITF | International Institute Of Tropical Forestry |
| IJAF | International Journal of Agriculture and Forestry |
| ILAF | Integrated Livestock and Agro Forestry |
| IMPF | Intensively Managed Planted Forests |
| IOF | Independent Order of Foresters |
| IOF | Institute of Forestry |
| IOOF | International Order Of Foresters |
| IOOF | The International Order Of Foresters |
| ISFR | India State of Forest Report |
| ITFC | Institute of Tropical Forest Conservation |
| JATFA | Jimmy and the Forest Animals |