IAP
IAP is the abbreviation of:
- inhibitor of apoptosis , apoptosis inhibitor
- International Academy for Philosophy in Liechtenstein
- Unstable angina pectoris
- Intra-abdominal pressure or pressure inside the abdomen
- Fraunhofer Institute for Applied Polymer Research
- Institute for Applied Psychology Zurich
- Leibniz Institute for Atmospheric Physics
- Instrument Approach Procedure , see instrument landing system
- Index of Air Purity , index of air purity based on lichen mapping
- Inter-Academy Panel , worldwide association of science academies
