William DuVall, American singer-songwriter and guitarist
William Bradley DuVall (born September 6, 1967) is an American musician best known as the current co-lead vocalist and rhythm guitarist for the rock band Alice in Chains. He joined Alice in Chains in 2006, replacing the band's original lead singer, Layne Staley, who died in 2002, and shares vocal duties with guitarist/vocalist Jerry Cantrell. DuVall has recorded three albums with the band: 2009's Black Gives Way to Blue, 2013's The Devil Put Dinosaurs Here, and 2018's Rainier Fog. DuVall won an ASCAP Pop Music Award for co-writing the song "I Know" for Dionne Farris in 1996 and has earned three Grammy Award nominations as a member of Alice in Chains.DuVall is also co-founder, lead singer, guitarist, and lyricist for Comes with the Fall. Since 2016, he has been the lead vocalist for the supergroup Giraffe Tongue Orchestra. In his long musical career, he has played a role in many bands, playing in a variety of genres, an example being the punk rock group Neon Christ.

DuVall's first solo album, One Alone, was released in 2019.