DJ Olive (also known as The Audio Janitor; born Gregor Asch) is an American disc jockey and turntablist. He is known for producing music generally in the electronic genre, with strong influences of dub, and free improvisation styles.

DJ Olive is a member of We, Lunchbox and Liminal. He has also collaborated with Kim Gordon, Ikue Mori, William Hooker, Zeena Parkins, Uri Caine, Medeski Martin and Wood, Dave Douglas, and various others.