Geoffrey "Geoff" Downes (born 25 August 1952) is an English rock songwriter, record producer, and musician, mainly a keyboardist. He is mainly known as a member of the New wave duo The Buggles, legendary progressive rock band Yes, and supergroup Asia.

Downes created The Buggles with Trevor Horn in 1977. After three years of songwriting and recording process, their first album, The Age of Plastic, was released in 1980. Now recognized as a highly influent album and a landmark of the electropop era, it also spawned the single "Video Killed the Radio Star", that was No. 1 on the singles charts of sixteen countries. The same year, both Horn and Downes joined Yes and recorded the album Drama as a part of the band. The following year however, Yes disbanded.