Arp or ARP may refer to:

Businesses and organizations

  • Applied Research in Patacriticism, a digital humanities lab based at the University of Virginia, US
  • Amphibious Reconnaissance and Patrol Unit, a Taiwan special forces group
  • Air Raid Precautions, a UK civil defence 1924–1946
  • Anti-Revolutionary Party (Dutch Anti-Revolutionaire Partij), a defunct Dutch political party
  • Autoradiopuhelin (car radio phone), a Finnish mobile phone network
  • Assembly of the Representatives of the People, Tunisian government
  • Associate Reformed Presbyterian Church (ARPC), US
  • Association for Research in Personality, US

Law

  • Adaptation Reporting Power, under the UK 2008 Climate Change Act
  • American Rescue Plan Act of 2021, an economic stimulus bill

Music

  • ARP Instruments, a former electronic musical instrument maker
  • Arpeggiator, on sound synthesizers and electronic organs
  • "Arp", a song by Apoptygma Berzerk from The Apopcalyptic Manifesto
  • "Arp", a song by Arcane Roots from Melancholia Hymns
  • "Faust Arp", a song by Radiohead from their album In Rainbows
  • "Arp #1", a song by French artist Jackson and His Computerband from his album Glow.

Places

  • Arp, Georgia, US
  • Arp, Tennessee, US
  • Arp, Texas, US

Science and technology

  • Active rollover protection, a vehicle safety technology
  • Address Resolution Protocol, a communication protocol
  • Arc routing problem, a category of general routing problems
  • Arp catalogue, of galaxies
  • Arp, a rosemary cultivar

People

  • Andrice Arp (born 1969), US comics artist and illustrator
  • Bill Arp, (1826-1903) Charles Henry Smith, US writer and politician.
  • Halton Arp (1927–2013), American astronomer
  • Fiete Arp (born 2000), German footballer
  • Jean Arp (1886–1966) or Hans Arp, German-French artist
  • Robert Arp (born 1970), American philosopher
  • Sophie Taeuber-Arp (1889–1943), Swiss artist
  • Arp Schnitger (1648-1719), German organ builder

Other uses

  • Airport reference point, a designated geographical location
  • Aerial Rescue Platform, a type of stretcher used in helicopter rescue missions
  • Arapaho language (ISO 639-3 code: arp), a Native American language

See also

  • AARP, formerly the American Association of Retired Persons
  • Actin-related protein, for example Arp10)
  • Arp2/3 complex, a protein
  • ARP spoofing, a networking attack
  • AR-15–style pistol, a handgun with an AR-15-style receiver