Glyn Thomas Johns (born 15 February 1942) is an English recording engineer and record producer. He has worked with many of the most famous rock recording acts from both the UK and abroad, such as the Rolling Stones, the Beatles, the Who, Led Zeppelin, the Kinks, Eagles, Bob Dylan, the Band, Eric Clapton, the Clash, Steve Miller Band, Small Faces, the Ozark Mountain Daredevils and Joan Armatrading. Throughout his career, he has generally preferred a live, natural approach to recording in the studio, and developed a method of recording drums sometimes referred to as the “Glyn Johns method“.

The years 1964–1984 marked Johns’s peak era of activity in which he engineered or produced numerous hit records. In 1965 Johns became one of the first independent British recording engineers to operate freelance rather than under the hire of a particular record label or studio. He was involved in making some of the most influential albums of the rock era such as Beggars Banquet and Let It Bleed by the Rolling Stones, Who’s Next by the Who, and Led Zeppelin’s debut album. Johns was the chief engineer during the Beatles’ Get Back sessions for what became the Let It Be album, as documented in the films Let It Be (1970) and The Beatles: Get Back (2021). Since 1984 Johns has continued to be active in the industry.

Johns is the father of Ethan Johns, and the older brother of Andy Johns (1950–2013), all three of whom shared the same career. In addition to his work as an engineer and producer, Johns has recorded as a solo musical artist. In 2012, Johns was inducted into the Rock and Roll Hall of Fame, receiving the Award for Musical Excellence.