Cinsaut or Cinsault is a red wine grape, whose heat tolerance and productivity make it important in Languedoc-Roussillon and the former French colonies of Algeria, Lebanon and Morocco. It is often blended with grapes such as Grenache and Carignan to add softness and bouquet.

It has many synonyms, of which perhaps the most confusing is its sale as a table grape called 'Oeillade', although it is different from the "true" Oeillade which is no longer cultivated. In South Africa, it was known as "Hermitage", hence the name of its most famous cross Pinotage.

The vine can produce heavy crops, but wines are much better if yields are controlled. Cinsaut is very drought resistant but can be susceptible to disease, so appreciates a dry climate. It produces large cylindrical bunches of black grapes with fairly thick skins.

Alternative Names: Cinsault, Cinqsaut, Cinq-saou, Ottavianello, Oeillade, Black Malvoisie, Blue Imperial, Black Prince, Samso