Other
- Collier Baronets, a title in the British honours system
- Collier Books, a publishing imprint of Macmillan Publishing Company
- Collier's Encyclopedia, a U.S. encyclopedia
- Collier's International South Africa and Collier's Outsourcing, subsidiary companies of financial services provider Quyn Holdings of South Africa
- Collier Motors, the last auto dealer in the U.S. under the American Motors banner
- Collier (necklace), a type of necklace, possibly a synonym for choker
- Collier Trophy, is the highest honor in American aviation
- Collier's Weekly was a U.S. magazine published between 1888 and 1957
- Colliers International, commercial real estate services company
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