| Abbreviation | Definition |
|---|---|
| IPO | Investigation Police Officer |
| IPOA | Incompetent Police Oversight Authority |
| IPOA | Independent Police Oversight Authority |
| IPOB | Independent Police Oversight Board |
| IPOF | Injured Police Officers Fund |
| IPPB | Inmate Placement Program Branch |
| IPPD | Inkopolis Plaza Police Department |
| IPPP | Infirmerie Psychiatrique de la Préfecture de Police |
| IPR | Independent Police Review |
| IPRA | Independent Police Review Authority |
| IPS | Indian Police Service |
| IPU | Integrated Police Unit |
| IPU | International Police Unit |
| IPV | Interceptor Protector Vest |
| IPV | Intimate Partner Violence |
| IQ | Internal Query |
| IRB | Incident Report Book |
| IRCO | Immigrant and Refugee Community Organization |
| IRD | Initial Rapid Deployment |
| IRR | Ionizing Radiation Regulations |