Office of Rare Diseases of the United States National Institutes of Health (NIH)

Ord = the proper class of all ordinal numbers.

O'Hare International Airport (IATA airport code "ORD"), an airport in Chicago, U.S.

Ord (Dragon Tales), one of the characters in the children's television series Dragon Tales on PBS

Edward Ord, a Major General who served in U.S. Army during the 19th century

Fort Ord, California, United States

Object-relational database

Ord River, Western Australia, Australia

Ord (comics), a Marvel Comics character

Ord, Nebraska, United States

ord(V) = the order type of a well-ordered set V.

George Ord, a zoologist

Boris Ord, a composer

Ord = the category of preordered sets

Ord, Northumberland, United Kingdom

Ord, Highland, Scotland

Optical rotatory dispersion (see circular dichroism), a form of spectroscopy used to determine the optical isomerism and secondary structure of molecules

Ord (Iron Kingdoms), a nation in the Privateer Press Full Metal Fantasy Genre