| ISPO | Indonesia Sustainable Palm Oil 
| Others |
| ISPO | Indonesian Science Project Olympiad
| Others |
| ISPO | Indonesian Sustainable Palm Oil
| Others |
| ISPO | Information Security Privacy Office
| Others |
| ISPO | Information Society Project Office
| Others |
| ISPO | Information Society Promotion Office
| Others |
| ISPO | Input, Storage, Process, and Output
| Others |
| ISPO | International Safeguards Project Office
| Others |
| ISPO | International Simultaneous Policy Organization
| Others |
| ISPO | International Society for Prosthetics and Orthotics
| Others |
| ISPO | International Standard for Pilot Organisations
| Others |
| ISPO | International Student Placement Office
| Others |
| ISPO | International Students Programs Office
| Others |
| ISPO | Irrevocable Standing Payment Order
| Others |