RAR

RAR or Rar may refer to:

• Radio acoustic ranging, the first non-visual technique for determining a ship's position at sea
• "rar", the ISO 639-2 code for the Cook Islands Māori language
• RAR (file format), a compressed archive file format in computer software
• Rarotonga International Airport, Cook Islands, IATA code RAR
• Rarus, or Rar, a figure in Greek mythology
• Retinoic acid receptor, a type of nuclear receptor
• Rhodesian African Rifles, a unit of the Rhodesian Security Forces
• Rock Against Racism, UK movement
• Rock am Ring and Rock im Park, a German rock music festival
• Royal Australian Regiment, a unit of the Australian Army
• Grupo RAR, a Portuguese company
• WinRAR, RAR, and UNRAR computer software for compressed archive files