Assyrtiko is a white wine grape variety that is primarily grown in Greece, particularly on the island of Santorini. It is one of the most significant and esteemed grape varieties in Greek winemaking.

Assyrtiko wines are known for their vibrant acidity, distinct minerality, and versatility. The grape thrives in the volcanic soils of Santorini, which contributes to its unique character. The vines are trained in a basket shape called "kouloura" to protect the grapes from strong winds and capture moisture from the morning fog.

Assyrtiko wines typically have a pale straw or lemon-yellow color. They offer intense citrus aromas, such as lemon, grapefruit, and lime, as well as hints of white flowers and sometimes a saline or flinty note.

On the palate, Assyrtiko wines are crisp, refreshing, and full-bodied with high acidity. They often exhibit flavours of citrus fruits, green apple, and a distinct mineral character.

In addition to dry white wines, Assyrtiko is also used to produce sweet wines, such as the famous Vin Santo-style wine from Santorini called Vinsanto. These sweet wines are made from sun-dried grapes and can have rich flavours of dried fruits, honey, and caramel.

Assyrtiko has gained international recognition and popularity for its high quality and ability to age well. It pairs excellently with seafood, grilled fish, Mediterranean cuisine, and dishes with tangy or salty flavours. While Assyrtiko is primarily associated with Santorini, it is also cultivated in other regions of Greece, including mainland Greece and the island of Rhodes, producing a range of styles that showcase the grape's versatility and regional nuances.