Guzgan (Guzganan or Quzghan, in Arabic Juzjan or Juzjanan) is the name of a historical region and early medival principality in what is now northern Afghanistan. The area was known as "Guzgan" or in the plural form "Guzganan", whence Arabic "Juzjan"/"Juzjanan". Orientalist Vladimir Minorsky derived the name from a word meaning "walnut", a product for which the area is still known today. The 19th-century scholar Henry George Raverty suggested that the plural form emerged from the division of the country in two parts by the river Murghab.