Oat (plural: oats) is a cereal grain crop.

Oat or Oats may also refer to:

• Carleton Oats (born 1942), American football player
• Francis Oats (born 1848 – died 1918), was a Cornish miner who became chairman of De Beers diamond company.
• Nate Oats (born 1974), American basketball coach

• Col. Oats, a character in the 1991 American science fiction comedy film Bill & Ted's Bogus Journey
• Mightily Oats, a character in the Terry Pratchett novel Carpe Jugulum

• OATS, Open Source Assistive Technology Software, a source code repository
• Oats (horse), a racehorse
• Obligation assimilable du Trésor, a French government bond
• Occupied Arab Territories, a designation used by the United Nations that refers to territories that are occupied by Israel after the Six-Day War.
• Ohio Achievement Test, now the Ohio Achievement Assessment
• Operational acceptance testing
• Optometry Admission Test, the widely used test for admission to a school of optometry
• Ornithine aminotransferase, an enzyme
• Outside air temperature
• Overseas Adventure Travel, an American travel agency
• Oxford Aviation Training, now Oxford Aviation Academy
• Organic acid technology in antifreeze
• Oats Studios, a science-fiction film studio started by Neill Blomkamp
• Scarborough Open Air Theatre, commonly abbreviated to OAT
• Old Anatolian Turkish, an extinct Turkic language

• Oates (disambiguation)
• Omicron Alpha Tau
• Oat Hills (disambiguation)
• Oat Mountain
• Oatmeal (disambiguation)

This disambiguation page lists articles associated with the title Oat.
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