Persan is a red French wine grape variety that is grown primarily in the Savoie region. While the name hints at a Persian origins for the grape, it is most likely native to the Rhône-Alpes region with the name "Persan" being a corruption of the synonym "Princens" which is also the name of a small hamlet by Saint-Jean-de-Maurienne in Savoie which has been noted since the 17th century for the quality of its vineyards.
The exact origins of Persan is unknown. The name of the grape lends itself to the theory that it originated in the Middle East and worked its way west via Cyprus. One legend has it that Prince Louis of Savoy had the vine brought to France from Cyprus where he reigned as king in the 15th century. Another theory that Master of Wine Jancis Robinson puts forth is that the name Persan is a corruption of Princens which combined two words from the local dialect meaning prin (or prime) and cens (a fee due to landowners from their vassals). Records indicate in the 17th century there was a vineyard located in the small hamlet of Princens by Saint-Jean-de-Maurienne east of Grenoble that was highly regarded and could have been home to the "Princens" grape that late became known as Persan.
The earliest mention of the name Persan itself occurred in 1846 when Albin Gras, then secretary of the Statistical Society of Isère and a board member for the Agricultural Society of Grenoble noted plantings of the variety in the Isère department. Gras said that the grape was known as Etraire on the right bank of the Isère river and as Persan on the left bank.