OAE

OAE could refer to:
 * Oceanic Anoxic event, in which the Earth's oceans become completely depleted of oxygen below the surface levels.
 * Orchestra of the Age of Enlightenment, a British period instrument orchestra.
 * Otoacoustic emissions, involved in testing hearing.
 * Omni Air Express, United States (ICAO operator designator)
 * Operation Active Endeavour
 * Oddworld: Abe's Exoddus a platform game made by Oddworld Inhabitants released in 1998