Julian Koster (born July 26, 1972) is an American multidisciplinary artist.
As a musician he is a member of the Elephant 6 Collective, the leader of The Music Tapes, and a member of Neutral Milk Hotel.
He is known for writing, directing, and acting in audio fiction The Orbiting Human Circus (of the Air), and for performing with the theatrical troupe of the same name.
He is also known for his heavy use of the musical saw in recordings, even releasing The Singing Saw at Christmastime, his only solo album released under his own name, in 2008.