For the island group, see Îles d'Hyères.

Hyères (French pronunciation: ​[jɛːʁ]), Provençal Occitan: Ieras in classical norm, or Iero in Mistralian norm) is a commune in the Var department in the Provence-Alpes-Côte d'Azur region in southeastern France.

The old town lies 4 km (2.5 mi) from the sea clustered around the Castle of Saint Bernard, which is set on a hill. Between the old town and the sea lies the pine-covered hill of Costebelle, which overlooks the peninsula of Giens. Hyères is the oldest resort on the French Riviera.