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Arp or ARP may refer to:


  • Andrice Arp (born 1969), U.S. comics artist and illustrator
  • Bill Arp (1826-1903) Nom de plume for Charles Henry Smith, an American writer and politician.
  • Halton Arp (1927–2013), American astronomer
    • Arp number, a numbering system for galaxies, designed by Halton Arp
  • Jann-Fiete Arp (born 2000), German footballer
  • Jean Arp (1886–1966) also known as Hans Arp, German-French artist
  • Sophie Taeuber-Arp (1889–1943), Swiss artist


In the United States

Businesses and organizations[edit]



Other uses[edit]

  • arp, the ISO 639-3 code for the Arapaho language, a Native American language
  • arp, the customary symbol for the arpent, an obsolete agrarian unit of distance and area measurement
  • Arp, a rosemary cultivar
  • Arp2/3 complex, a protein