AVR may refer to:

Railroad

Allegheny Valley Railroad The Allegheny Valley Railroad is a class III railroad that operates in Western Pennsylvania, and is owned by Carload Express, Inc. AVR acts as a feeder line connecting its many and varied customers to Class I railroads such as CSX Transportati ...

, shortline railroad in Pennsylvania, U.S. * Aroostook Valley Railroad, a defunct railroad in Maine, U.S. * Assiniboine Valley Railway, a minimum gauge railway in Winnipeg, Canada * Avon Valley Railway, a heritage railway in the United Kingdom

Radio

* Aboriginal Voices Radio, an Aboriginal Canadian national radio network *

Annapolis Valley Radio CKEN-FM is a Canadian radio station, broadcasting from Kentville, Nova Scotia at 97.7 FM. The station currently plays a country format and is branded on-air as ''AVR'' (which is short for Annapolis Valley Radio). The station has been on the a ...

, a country station located in Kentville, Nova Scotia

Electronics

AVR microcontrollers AVR is a family of microcontrollers developed since 1996 by Atmel, acquired by Microchip Technology in 2016. These are modified Harvard architecture 8-bit RISC single-chip microcontrollers. AVR was one of the first microcontroller families to ...

, a family of microcontrollers originally developed by Atmel, now part of Microchip Technology * Audio/video receiver, a home theater electronic component * Acronym for

augmented reality Augmented reality (AR) is an interactive experience that combines the real world and computer-generated content. The content can span multiple sensory Modality (human–computer interaction), modalities, including visual, Hearing, auditory, hap ...

and

virtual reality Virtual reality (VR) is a simulated experience that employs pose tracking and 3D near-eye displays to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), e ...

interactive experiences * Automatic

voltage regulator A voltage regulator is a system designed to automatically maintain a constant voltage. A voltage regulator may use a simple feed-forward design or may include negative feedback. It may use an electromechanical mechanism, or electronic components ...

Other uses

Armed violence reduction The concept of armed violence reduction (AVR) has gained significant in importance after the 2006 Geneva Declaration on Armed Violence and Development. According to OECD, more than 740,000 people die each year as a result of the violence associated ...

Aortic valve replacement Aortic valve replacement is a procedure whereby the failing aortic valve of a patient's heart is replaced with an artificial heart valve. The aortic valve may need to be replaced because: * The valve is leaky ( aortic insufficiency, also known ...

* Automatic

voter registration In electoral systems, voter registration (or enrollment) is the requirement that a person otherwise eligible to vote must register (or enroll) on an electoral roll, which is usually a prerequisite for being entitled or permitted to vote. The r ...

* Avacyn Restored *

AVR reactor The AVR reactor (german: Arbeitsgemeinschaft Versuchsreaktor) was a prototype pebble-bed reactor, located immediately adjacent to Jülich Research Centre in West Germany, constructed in 1960, grid connected in 1967 and shut down in 1988. It was ...

('), a German prototype pebble bed reactor * Avirulence gene, "Avr" *

Auxiliary Vessel, Rescue Crash boats, at the time known as "aircraft rescue boats" or "air-sea rescue boats", were wooden speedboats built to rescue the crew of downed United States and other Allies aircraft during World War II. US boats came from the observation of ...

or Aircraft Vessel, Rescue * Lead augmented vector right (aVR), a voltage difference in electrocardiography {{disambig