Pézenas is a commune in the Hérault department in the Languedoc-Roussillon region in southern France.
"Pézenas" is derived from the older name Piscenae, probably from the Latin word piscenis, meaning fishpond. According to legend, there was a lake full of fish behind the château. Inhabitants of Pézenas are Piscenois.
The origins of Pézenas are unclear, but were influenced by three factors: water from the River Peyne, an ancient pre-Roman route from Rodez to Saint-Thibéry and a defensive hill site.
Pézenas has had a Protected Area (Secteur sauvegardé) since June 1965, the 14th created by the French Ministry of Culture. The ministry lists 116 historical edifices in Pézenas, more than 30 of which are protected after being classified "Historical Monuments". The main sights include: