Rías Baixas is a Spanish appellation located along the Atlantic coast in Galicia. The entire region is divided into five subregions: Salnes Valley, O Rosal, Soutomaior, Ribeira do Ulla, and Condado do Tea. There are several permitted grape varieties, but Albariño prospers and dominates in the entire region.

Albariño is a white grape variety grown in northwest Spain (Galicia) and northwest Portugal (Monção and Melgaço) where it is used to make varietal white wines. Albariño wines are very light, fresh, crisp, with high acids and of a rich, floral, and aromatic character.

Txakoli is a light and fresh, clean-tasting, slightly sparkling, and usually white Spanish wine that is mainly produced in the Basque Country, more precisely in the wine regions Getariako, Bizkaiko, and Alava. The wines are typically made from Hondarrabi Zuri grapes, and although regional expressions may slightly differ, Txakoli wines are low in alcohol and high in acidity, while they usually display crisp fruity notes reminiscent of apples and citrus.

Getariako Txakolina is a Spanish appellation from Basque Country (Gipuzkoa) that produces white Txakoli wines—crisp white wines that the entire Basque region is famous for. The wines are low in alcohol and typically lightly bubbly.

Most are made from the native Hondarrabi Zuri grapes. Getariako Txakolina is one of the three Txakoli appellations. The examples coming from this region usually have brighter acidity. They will also mostly have a mineral, saline note, because of the vicinity to the Cantabrian sea (Bay of Biscay).

This white grape variety probably originated in North Africa from where it was imported to the Iberian Peninsula, and today it is mainly known as the principal grape used in Rueda (DO), both in blends and as a varietal wine. The wines produced from Verdejo are typically light-bodied, fruit-forward, fresh, and lively, with well-balanced acidity that is accompanied by bright and herbaceous flavors of citrus, fruit, and fennel.

Godello is a Spanish grape variety that has recently risen in popularity after it had nearly gone extinct after the 1970s. The grape shows the best results in Valdeorras in Galicia, though it is planted in other Spanish regions, as well as Portugal.

Xarel·lo is a Spanish grape variety best known for its use in sparkling Cava, where it is used along with Macabeo and Parellada. It is a high-quality grape that provides power, body, and structure in Cava wines. It is the most planted variety in DO Penedès.

Palomino Fino is a Spanish grape variety that is mostly used in the production of sherry. Known as a high-yielding grape that produces mainly bland white wines that are low in acidity and sugar, the must from Palomino can oxidize quickly, which makes it ideal for the production of sherry—fortified and oxidized wines that hail from Jerez.

Airén is the most widely planted grape variety in Spain. This white-skinned grape is better known for its sturdiness, and though it was mainly used as a blending grape or in production of brandy and table wines, some winemakers have seen its potential in the production of crisp, good-quality varietals.