| Acronym | Definition |
|---|
| IRTP➣Internet Reliable Transaction Protocol |
| IRTP➣Intensive Residential Treatment Program (various locations) |
| IRTP➣Internal Revenue Tax Paid |
| IRTP➣Intensive Remedial Teaching Programme (Hong Kong) |
| IRTP➣International Reference Test Procedure |
| IRTP➣International Rice Testing Programme |
| IRTP➣Initial Recruiting and Training Plan |
| IRTP➣International Review of Theory & Practice (psychology & criminal justice) |
| IRTP➣Integrated Reliability Test Program |