| Abbreviation | Definition |
|---|---|
| IPVW | Intricate Paper Virtue Walls |
| IPW | Ice Palace Workers |
| IRCC | International Relations Career Challenge |
| IRT | International Recruiting Technology |
| IRWO | Integrated Rural Workers Organization |
| IRWO | Intergrated Rural Workers Organization |
| ISA | International Sales Agent |
| ISCE | International Summit for Careers in Economics |
| ISECS | Seminar for Early Career Scholars |
| ITGWU | Irish Transport General Workers Union |
| IW | Industrial Workers |
| IW | Information Workers |
| IWA | International Workers Association |
| IWAC | Injured Workers Action Committee |
| IWBA | Injured Workers Bar Association |
| IWIS | IBM Workers International Solidarity |
| IWO | International Workers Order |
| IWOC | Incarcerated Workers Organising Committee |
| IWP | Injured Workers Pharmacy |
| IWP | International Workers Party |