Champagne DO is the French designation of origin that protects the production of sparkling wines from the Champagne region, made using the traditional method of secondary fermentation in the bottle. Champagne wines are characterized by their complexity and elegance, with notes of white fruit, citrus, toast, and yeast.

The Champagne region comprises several subregions that contribute distinct styles and characteristics to the wines, such as Montagne de Reims, Côte des Blancs, Vallée de la Marne, and Côte des Bar. The main types of Champagne wine are Brut, Extra Brut, Brut Nature, Sec, Demi-sec, and Doux, classified according to their residual sugar content.