| IGR | Ignore Gated Roads 
| Others |
| IGR | Iguazu, MI, Argentina
| Others |
| IGR | Image-Guided Radiosurgery
| Others |
| IGR | Impaired glucose regulation
| Others |
| IGR | Import Goods Received
| Others |
| IGR | Impossibilist GR referring
| Others |
| IGR | Indiana Guard Reserve
| Others |
| IGR | Info Gain Ratio
| Others |
| IGR | Information Gain Ratio
| Others |
| IGR | Informational Guideline Release
| Others |
| IGR | Informational Guideline Releases
| Others |
| IGR | inlink Growth Rate
| Others |
| IGR | Insect Growth Regulator
| Others |
| IGR | Insect Growth Regulators
| Others |
| IGR | Inset Growth Regulator
| Others |
| IGR | Institut Gustave Roussy
| Others |
| IGR | Insulin Glucose Ratio
| Others |
| IGR | Intelligenter Generatorregelung
| Others |
| IGR | Inter-Governmental Revenue
| Others |
| IGR | Inter-Quartile Range
| Others |
| IGR | Internal Gas Recirculation
| Others |
| IGR | Internally Generated Revenue
| Others |
| IGR | International Gay Rugby
| Others |
| IGR | International Glaucoma Review
| Others |
| IGR | International Gordini Revival
| Others |
| IGR | International Government Relations
| Others |
| IGR | Internet Games Room
| Others |
| IGR | Internet Gateway Router
| Others |
| IGR | Intrauterine Growth Retardation
| Others |
| IGR | Istanbul Gold Refinery
| Others |