| Abbreviation | Definition |
|---|---|
| IOE | Institute of Export |
| IOE | Institute of the Environment |
| IOE | Institute on Ecosystems |
| IOE | Institution Of Eminence |
| IOE | Institution Of Engineering |
| IOE | Institutions Of Eminence |
| IOEI | International Online Education Institute |
| IOF | Institute for the Oceans and Fisheries |
| IOF | Institute of Forestry |
| IOF | Institute of Fundraising |
| IOG | Institute of Gerontology |
| IOG | Institute of Government |
| IOG | Institute of Groundsmanship |
| IOG | Institute of oil and gas |
| IOG | Institute On Governance |
| IOGS | Institute for Oil and Gas Sector |
| IOGT | Institute Of Globaal Technology |
| IOH | Institute for Oral Health |
| IOH | Institute of Hospitality |
| IOI | Institute of Imagination |