Assyrtiko or Asyrtiko is a white Greek wine grape indigenous to the island of Santorini.

Assyrtiko is widely planted in the arid volcanic-ash-rich soil of Santorini and other Aegean islands, such as Paros.

[4] The original Assyrtiko cuttings were imported in the USA in 1948 by Harold Olmo, grape breeder at the University of California, Davis, where they were stored until the abbey of New Clairvaux took interest in the early 2000s.

[1] Assyrtiko grapes clusters are large, with transparent yellow-gold skin and juicy flesh.

In the volcanic soil of Santorini, there appear to be some unique characteristics that develop in the grape variety, and therefore in the wine.