Ord may refer to:
- People
- Boris Ord (1897-1961), British composer
- Edward Ord (1818-1883), Major General in the US Army
- George Ord (1781-1866), zoologist
- Sir Harry St. George Ord (1819-1885), the 10th Governor of Western Australia
- William Ord (1781–1855), English Whig politician and landowner
- Places
- Ord, Nebraska, USA
- Ord, Northumberland, England
- Muir of Ord, village in Highland, Scotland
- Ord River, Western Australia
- Ord Irrigation Area Important Bird Area
- Ord River Floodplain Ramsar Site
- Ord Victoria Plain
- Ord Township, Nebraska (disambiguation), name of two townships in Nebraska, USA
- East Ord, Northumberland, UK
- Fort Ord, California, USA
- Mathematics
- Ord = the category of preordered sets
- Ord = the proper class of all ordinal numbers
- ord(V) = the order type of a well-ordered set V
- Businesses
- Ord Publishing, an imprint of the German group VDM Publishing devoted to the reproduction of Wikipedia content
- Fiction
- Ord (Iron Kingdoms), a nation in the Privateer Press Full Metal Fantasy Genre
- A prefix for several planets in the Star Wars universe, such as Ord Mantell
- Ord (comics), a Marvel Comics character
- Ord (Dragon Tales), one of the characters in the children's television series Dragon Tales on PBS
ORD may refer to:
- O'Hare International Airport (IATA airport code "ORD"), an airport in Chicago, U.S.
- Object-relational database
- Office of Rare Diseases of the United States National Institutes of Health (NIH)
- Optical rotatory dispersion, a form of spectroscopy used to determine the optical isomerism and secondary structure of molecules