David Andrew Sitek (born September 6, 1972) is an American musician, guitarist and record producer, best known as a member of the band TV on the Radio. He has also worked with bands such as Yeah Yeah Yeahs, Liars, Foals, Celebration, Little Dragon, and most recently Beady Eye, and produced free jazz-influenced remixes of songs by artists such as Beck and Nine Inch Nails, and has contributed a solo track to the Red Hot Organization Dark Was the Night charity compilation. He is also a photographer and painter.

In April 2008, Sitek was named Number One in NME's Future 50 list of the most forward thinking people in music today.