| Abbreviation | Definition |
|---|---|
| IPIN | International Property Investment Network |
| IPIP | Iberian Property Investment Partners |
| IPIT | Indiabulls Properties Investment Trust |
| IPP | Independent Power Producer |
| IPP | Investment Protection Planning |
| IPR | Investment Property Research |
| IPS | Investment Partnership Services |
| IPS | Investment Portfolio Securities |
| IPT | Investor Protection Trust |
| IPTE | Investment Pass Through Entity |
| IQT | Investment Quality Trends |
| IR | Investment Rules |
| IR | Investor Relation |
| IR | The Investment Rules |
| IRB | Investment Review Board |
| IRBD | Investor Relations Business Development |
| IRD | Interest Rate Deduction |
| IRGR | Investor Relations Global Ranking |
| IRI | Initiative for Responsible Investment |
| IRL | Investment Readiness Level |