Arneis is an Italian white wine grape variety, which is mostly associated with the Piedmont region in northwest Italy. The grape is known for its slightly aromatic, medium-bodied and fruity characteristics.

Arneis is a green-yellow coloured grape variety with a light, sweet aroma, and a dry, delicate taste. Its aromatic notes are often described as floral and almond-like, with some variations in aroma depending on the age of the wine.

The Arneis grape is most notably grown in the Piedmont region, although it can also be found in other regions of Italy. It is also grown in small amounts in California, Australia and New Zealand. The Arneis grape is a difficult variety to grow, as it is sensitive to botrytis. Winemakers must harvest the grape early to preserve its delicate aromas and flavours, as well as its acidity. The Arneis grape produces wines that range from light and crisp to full-bodied and rich. In Piedmont, the wine is typically made in a dry, unoaked style, while in California the style is often richer and fuller-bodied, with some oak influence. Arneis wines pair well with a variety of dishes, from lighter seafood dishes to richer white meats. It is especially suited for dishes with cream or butter sauces, as the acidity in the wine will help to balance the richness of the sauce.

The name 'Arneis' is derived from the Piedmontese dialect word 'arnèis', which means 'little rascal' - a reference to the grape's notoriously difficult growing habits.