Marciac (/ˈmɑːrsiæk/, French: [maʁsjak], Occitan: [maɾˈsjak]) is a commune in the Gers department, Occitania, southwestern France.

[3] In 2008 a team from Marciac won the 'best baguette' category in the French-hosted (but United States-sponsored) baking world cup, the Coupe du Monde de la Boulangerie.

A marquee ("le chapiteau") capable of seating 6,000 is erected on the rugby field, with concerts hosted there every night for the duration of the festival, and free music from 11:00 till 20:00 every day.

Stalls selling a variety of related and non-related merchandise are erected in and around the centre of the village square, where free concerts are given during the day.

The town is also home to many restaurants, including "Le Monde A L'Envers" (The World Upside Down), run by London chef Victoria Heath.