Randall Dunn is an American record producer, songwriter, and composer known for his genre-blending work across alternative rock, pop, hip hop, and experimental music. Over a four-decade career, he has collaborated with a wide range of artists, produced charting singles, and developed a distinctive sound characterized by layered arrangements, atmospheric textures, and unconventional production techniques.

As a music producer, he has worked with artists and filmmakers including Danny Elfman, Jim Jarmusch, Panos Cosmatos, Nathan Fielder, Benny Safdie, Guillermo Del Toro, Björk, Oneohtrix Point Never, Thurston Moore, Zola Jesus, Algiers, Sunn O))), SQÜRL, Six Organs of Admittance, Marissa Nadler, Boris, Anna Von Hausswolff, Pallbearer, Oren Ambarchi, Eyvind Kang, The Cave Singers, Akron/Family, Earth, Wolves in the Throne Room, and Jesse Sykes, among others. Pitchfork has described him as "a go-to producer for metal but also for indie acts looking to add more edge and atmosphere."

Originally from Michigan, Dunn moved to Seattle in 1993 to explore his interest in film music. He attended the Art Institute of Seattle to study sound design for film, and formed connections with local musicians, including Skerik and Matt Chamberlain. In an interview, Dunn stated, "I'm sort of a frustrated filmmaker that turned into a record producer. The people I met when I moved here spun me in a way that sent me down this path of treating sound the way I would have treated film."

During his studies he received practical experience at Hanzsek Studios under the instruction of Jack Endino. He gradually became involved in the recording and producing of sessions.

As a fan of the band Naked City, Dunn contacted keyboardist Wayne Horvitz in Seattle who introduced him to Eyvind Kang. Dunn received his first credit for a session with Eyvind Kang, resulting in the piece "5th NADE/Invisible Man" on the 7 NADEs album released in 1996. His involvement resulted in a long-term friendship with Kang, through whom he met a number of musicians, mostly in the jazz-rock genre. Dunn was later introduced to the engineer Mell Dettmer and together they founded Aleph Studios.

In 1998 he engineered the live portion of the album Bumpa by Critters Buggin, while he received a writing credit for his involvement with Mr. Birdy's Fryday by the Rockin' Teenage Combo. In 2001 he worked together with trumpet player Lesli Dalaba and guitarist Bill Horist, releasing the ambient album Zahir. He engineered Kang's 2002 album Live Low to the Earth, in the Iron Age.

In 2005, he was credited as an engineer on the Impaled album Death After Life released through Century Media. In the same year, Dunn met Dylan Carlson of the band Earth in Seattle and recorded their fourth album, Hex; or Printing in the Infernal Method at Aleph Studios.

After hearing his work with Asva, Stephen O'Malley contacted Dunn to produce the collaborative album between Sunn O))) and Boris, Altar. This began a long relationship with the band doing live sound and producing several of their albums including Monoliths & Dimensions and Kannon.