Lunas (French pronunciation: [lynas]; Occitan: Lunaç) is a former commune in the Hérault department in southern France.

On 1 January 2025, it was merged into the new commune of Lunas-les-Châteaux.

The average annual rainfall is 1,146.0 mm (45.12 in) with October as the wettest month.

The temperatures are highest on average in July, at around 21.8 °C (71.2 °F), and lowest in January, at around 5.7 °C (42.3 °F).

This Hérault geographical article is a stub.