OAP
# OAP

OAP may refer to:

* OAP Tower, or Osaka Amenity Park Tower, a plaza and office development in Japan
* Old-age pensioner, a person who has retired, and now collects a pension
* One Australia policy, a proposal in the 1980s to limit Asian immigration to Australia
* Open access (publishing), a type of academic publication accessible by all, without subscription
* Offset Alpine Printing
* Off-axis parabolic reflector, a type of curved mirror used in optics and radio
* the Office of Atoms for Peace of Thailand
