APR

APR or Apr may refer to:

Economics

 * Annual percentage rate, the interest rate computed for an entire year
 * The term includes the nominal APR and the effective APR

Organizations

 * Agrarian Party of Russia, a left-wing political party in Russia
 * Alabama Public Radio
 * Algarve Pro Racing, Portuguese auto racing team
 * American Public Radio, now Public Radio International
 * Andy Petree Racing, stock car auto racing team
 * Appian Publications & Recordings
 * Armée Patriotique Rwandaise FC, Rwandan association football club
 * Asia Pacific Rayon, Indonesian-based viscose-rayon producer
 * Asia-Pacific Scout Region (World Organization of the Scout Movement)

Technology

 * Acoustic paramagnetic resonance, a resonant absorption effect used in magnetic resonance spectroscopy
 * Acute phase reaction, a reaction due to the presence of inflammatory allergens
 * Advanced port replicator, a docking device
 * Ammonium perrhenate, a compound of rhenium
 * Apache Portable Runtime, a library for the Apache web server
 * ARP Poison Routing, spoofing of the address resolution protocol (ARP)
 * Brügger & Thomet APR, the Advanced Precision Rifle, a Swiss sniper rifle
 * The APR-1400 and APR+ advanced pressurized reactor, a series of South Korean pressurized water nuclear reactors
 * Air-Purifying Respirator
 * Automatic program repair
 * Automated Pain Recognition

Other uses

 * Abdominoperineal resection
 * Academic Progress Rate, an NCAA (National Collegiate Athletic Association) guideline
 * Accreditation in Public Relations
 * Acute phase reactant, a class of proteins
 * Adleman–Pomerance–Rumely primality test to check whether a given number is prime
 * African Peer Review Mechanism, an African Union self-monitoring mechanism
 * Alberta Prairie Railway Excursions
 * Alternative Press Review, a left-wing American political magazine
 * April, as an abbreviation for the fourth month of the year in the Gregorian calendar
 * The Chief Scouts' Advance Party Report, a review of Scouting that took place in the UK in 1966
 * A retired US Navy hull classification symbol: Convoy rescue craft (APR)