David Daniell (born October 30, 1972) is an American guitarist and composer active in experimental music, improvisation and electroacoustic composition.

He has been active with the trio San Agustin since 1996. He has also collaborated with Loren Connors, Rhys Chatham, Tony Buck, Oren Ambarchi, Christian Fennesz, Tim Barnes, Ateleia, Jeph Jerman, Thurston Moore, Sean Meehan, Tomas Korber, Greg Davis and Jonathan Kane, and currently works in an ongoing duo with Douglas McCombs.