The oud is a musical instrument.

Oud or OUD may also refer to:

Agarwood, a perfume or incense material OUD, a registered trademark of the Orthodox Union for identifying kosher products that contain dairy Oxford Universal Dictionary, American name for an edition of the Shorter Oxford English Dictionary Opioid use disorder Angads Airport, by IATA code Oud (surname) Oud bruin Oud Gastel Oud (instrument)

See also Oude or Oudh, historical name for the Awadh region in India OOD (disambiguation)