Ood or OOD may refer to:

• Ood, a fictional alien species from Doctor Who
• Ood, the name of a prophet in The Gods of Pegāna by Lord Dunsany
• ood, ISO 639-3 code for the Oʼodham language
• Officer of the day, at military installations
• Officer of the deck, in the US Navy and Coast Guard
• Object-oriented design, in software

See also[edit]

• Oodes, a genus of beetles
• Oud (disambiguation)