A Winged Victory for the Sullen is an ambient music duo composed of Dustin O'Halloran and Adam Wiltzie. They have released four studio albums, an EP and one soundtrack album. In 2015, they performed in Royal Albert Hall as part of The Proms.
The duo composed the original score for Atomos, for Wayne McGregor's dance company. It premiered at Sadler's Wells Theatre, London, in 2013. An album of the score, Atomos, was released. Their third studio album, The Undivided Five, was released by Ninja Tune in 2019.