Other
- Baker v. Carr, U.S. Supreme Court case
- USS Carr (FFG-52), Oliver Hazard Perry-class frigate, ship of the U. S. Navy
- Carr Amplifiers, Pittsboro, North Carolina manufacturer of high-end, hand-wired tube guitar amplifiers
- Carr Auditorium in Orlando, Florida
- Carr-Benkler wager over who will provide Internet content in the future
- Carr Communications
- Carr's, English manufacturers of water biscuits
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