John Vanderslice (born in Gainesville, Florida) is an American musician, songwriter, record producer, and recording engineer. He is the owner and founder of Tiny Telephone, an analog recording studio with locations in San Francisco Mission District and North Oakland. He released 10 full-length albums and 5 remix records and EPs on Dead Oceans and Barsuk Records and has collaborated with musicians such as The Mountain Goats, St. Vincent, and Spoon.

Since 2014, Vanderslice has been a full-time record producer at Tiny Telephone and has worked with Frog Eyes, Samantha Crain, the Mountain Goats, and Grandaddy. He has previously worked with Sophie Hunger, Bombadil, Strand Of Oaks, and Spoon.