Brian Peter George St John le Baptiste de la Salle Eno (; born Brian Peter George Eno, 15 May 1948) is a British musician, composer, record producer and visual artist best known for his contributions to ambient music and work in rock, pop and electronica. A self-described "non-musician", Eno has helped introduce unconventional conceptual and recording approaches to contemporary music. He has been described as one of popular music's most influential and innovative figures.Born in Suffolk, Eno studied painting and experimental music at the art school of Ipswich Civic College in the mid 1960s, and then at Winchester School of Art. He joined glam rock group Roxy Music as its synthesiser player in 1971, recording two albums with the group before departing in 1973. Eno then released a number of solo pop albums beginning with Here Come the Warm Jets (1974) and, also in the mid-1970s, began exploring a minimalist direction on influential recordings such as Discreet Music (1975) and Ambient 1: Music for Airports (1978), coining the term "ambient music" with the latter.

Alongside his solo work, Eno collaborated frequently with other musicians in the 1970s, including Robert Fripp, Harmonia, Cluster, Harold Budd, David Bowie, David Byrne and Judy Nylon. He also established himself as a sought-after producer, working on albums by John Cale, Jon Hassell, Laraaji, Talking Heads, Ultravox, and Devo, as well as the no wave compilation No New York (1978). In subsequent decades, Eno continued to record solo albums and produce for other artists, most prominently U2 and Coldplay, alongside work with artists such as Daniel Lanois, Laurie Anderson, Grace Jones, Slowdive, Karl Hyde, James, Kevin Shields, and Damon Albarn.

Dating back to his time as a student, Eno has also worked in other media, including sound installations, film, and writing. In the mid-1970s, he co-developed Oblique Strategies, a deck of cards featuring aphorisms intended to spur creative thinking. From the 1970s onwards, Eno's installations have included the sails of the Sydney Opera House in 2009 and the Lovell Telescope at Jodrell Bank in 2016. An advocate of a range of humanitarian causes, Eno writes on a variety of subjects and is a founding member of the Long Now Foundation. In 2019, Eno was inducted into the Rock and Roll Hall of Fame as a member of Roxy Music.