Airén is a variety of
Vitis vinifera, a white
grape commonly used in winemaking. This grape is native to
Spain where it represents about 30% of all grapes grown. As of 2010, Airén was estimated to be the world's 3rd most grown grape variety in terms of planted surface, at , down from in 2004, where it held 1st place, although it is almost exclusively found in Spain. Since Airén tends to be planted at a low density, several other varieties (including
Cabernet Sauvignon and
Merlot) are more planted in terms of number of
vines. Plantations of Airén are declining as it is being replaced in Spanish vineyards with various red varieties, such as
Tempranillo.