Tristan Casara (born 23 January 1987), known by his stage name The Avener (/ˈævənər/), is a French deep house and electro DJ and music producer from Nice.

In September 2014 the Avener released his debut single "Fade Out Lines", a deep house rework of "The Fade Out Line", a song by Phoebe Killdeer & The Short Straws.

He released his debut studio album The Wanderings of the Avener in January 2015, peaking at number 2 in France.

In 2015, the Avener was partnered with the FIA World Endurance Championship and played a set at each race weekend.

In August 2015, it was revealed that the Avener would provide production for Mylène Farmer's tenth studio album, including the lead single "Stolen Car", a duet with Sting.