Marsanne (French pronunciation: [maʁsan] ⓘ) is a white wine grape, most commonly found in the Northern Rhône region.

The grape most likely originated in the Northern Rhône region where it is widely planted today, more precisely in the village and abbey of Marsanne (Drôme).

Along with Roussanne, up to 15% of Marsanne can be added to the red wine of Hermitage under Appellation d'origine contrôlée (AOC) regulations.

[2] In British Columbia and Washington State, plantings of Marsanne continue to increase as producers blend it with Roussanne and Viognier.

Sommeliers have found that the vintage in relation to the climate has exaggerated effects on Marsanne blends in the United States.

In Michigan Domaine Berrien Cellars is the sole non-California member of the Rhone Rangers and pioneered the planting of Marsanne, Roussanne, Viognier, and Syrah in 1992.

Some Australian winemakers prefer to let the grape hang longer on the vine to increase the alcohol level of the wine and its aging potential.

[2] As Marsanne ages, the wine takes on an even darker color and the flavors can become more complex and concentrated with an oily, honeyed texture.