Gigean (French pronunciation: [ʒiʒɑ̃]; Occitan: Gijan) is a commune in the Hérault département in Occitanie in southern France.

Gigean is bordered by the Étang de Thau to its west, the Gardiole hills to its south and by a wine growing plain, which runs from the Moure Hills to the edge of Montpellier.

The climate is Mediterranean: warm and dry in the summer, mild in the winter.

Autumn is often marked by rain and heavy wind.

Poussan, Montbazin, Cournonsec, Fabrègues, Vic-la-Gardiole, Frontignan and Balaruc-le-Vieux.