ABR
Look up abr in Wiktionary, the free dictionary.
Abr or ABR may refer to:
Technology
- Available Bit Rate, a service used in ATM networks
 - Average bitrate, the average amount of data transferred per second
 - Area border router, in the Open Shortest Path First protocol
 - Adaptive bit rate, a method of video transmission through the Internet
 - Anaerobic baffled reactor, a type of decentralized wastewater system
 
Transport
- ABR, IATA airport code for Aberdeen Regional Airport,in South Dakota, United States
 - ABR, ICAO designation for ASL Airlines Ireland, a freight airline
 - Abercynon North railway station, a closed railway station formerly serving the village of Abercynon in the Cynon Valley, South Wales
 - Athens Line, a railroad operating in the U.S. state of Georgia
 
Other uses
- Abr, a village in Iran
 - abr, ISO 639-3 code for the Abron dialect, a dialect of the Akan language of Central Ghana
 - Accredited Buyer Representative, a designation of the National Association of Realtors
 - Addison Brown (1830–1913), American jurist and botanist (standard author abbreviation: A. Br.)
 - American Board of Radiology
 - Auditory brainstem response, an electrical signal evoked from the brainstem of a human or other mammal
 - August Burns Red, a metalcore band from Lancaster, Pennsylvania
 - Australian Biblical Review, academic journal
 - Australian Book Review, a literary magazine
 - Australian Business Register, government body tasked with issuing and maintaining Australian Business Numbers (ABNs)