| IAP | Intermittent Aeration Process (for Waste Treatment) | - | Computer Acronyms(common) |
| IAP | Imaging Atom Probe | - | Computer Acronyms(common) |
| IAP | Immunosuppressive Acidic Protein | - | Computer Acronyms(common) |
| IAP | Indoor Air Pollution | - | Computer Acronyms(common) |
| IAP | Inhibitor Of Apoptosis | - | Computer Acronyms(common) |
| IAP | Integrin-assocd. Protein | - | Computer Acronyms(common) |
| IAP | Intracisternal A-particle | - | Computer Acronyms(common) |
| IAP | Ion Activity Products | - | Computer Acronyms(common) |
| IAP | Islet-activating Protein | - | Computer Acronyms(common) |
| IAP | International Affiliates Program | - | Business and Finance |
