Tempranillo blanco is a white Spanish wine grape variety that is grown in the Rioja Denominación de Origen (DOC). It is a mutation of the red Tempranillo grape variety that is planted in Rioja. The white grape variety was discovered in a Tempranillo vineyard in the Rioja region by a wine grower in the late 20th century. In 2007, the Consejo Regulador of Rioja officially sanctioned the use of Tempranillo blanco in the DOC wines of Rioja.