VAP may refer to:
- Venous access port; see Port (medical)
- Ventilator-associated pneumonia, sub-type of hospital-acquired pneumonia (HAP)
- Vertical Auto Profile, cholesterol, lipid and lipoprotein blood test
- Vapour Pressure Deficit, physical effect
- Vascular adhesion protein
- Vascular Anomaly Programme; see Arteriovenous malformation, Hemangioma
- VAP (company), a Japanese entertainment company
- VĂ©hicule d'Action dans la Profondeur, a military vehicle made by Panhard
- Voting age population
- Virtual Access Point, a method of using multiple BSSIDs on single physical Wireless Access Point
- Viral attachment protein