AD 2 (disambiguation)

AD 2 (2 CE) was a common year of the Julian calendar.

AD 2 may also refer to:
 * Ad 2, a division of the American Advertising Federation
 * USS Melville (AD-2), a US Navy destroyer tender
 * AD-2 Skyraider, an American attack aircraft
 * AD-2 experiment, a collaboration to create antihydrogen