| Acronym | Definition |
|---|
| IoG | Institute of Golf (various locations) |
| IoG | Institute On Governance (Institut Sur La Gouvernance - Canada) |
| IoG | Institute of Gerontology |
| IoG | Institute of Government (Florida, USA) |
| IoG | Infrastructure Operations Group (various organizations) |
| IoG | Idemitsu Oil & Gas (Japan) |
| IoG | Institute of Geography |
| IoG | Input/Output Group |
| IoG | International Operations Group |
| IoG | Input-Output Gate |
| IoG | Industrial Off-Gas |
| IoG | Intercollegiate Opera Group |
| IoG | International Organizations and Groups |
| IoG | Infinity Oil and Gas, Inc (Denver, CO) |