Wish You Were Here is the ninth studio album by the English rock band Pink Floyd, released on 12 September 1975 through Harvest Records in the UK and Columbia Records in the US, their first for the label. Based on material Pink Floyd composed while performing in Europe, Wish You Were Here was recorded over numerous sessions throughout 1975 at EMI Studios in London.

The lyrics express alienation and criticism of the music business. The bulk of the album is taken up by "Shine On You Crazy Diamond", a nine-part tribute to the Pink Floyd co-founder Syd Barrett, who had left seven years earlier due to his deteriorating mental health. Barrett coincidentally visited during the recording. As with their previous release, The Dark Side of the Moon (1973), Pink Floyd employed studio effects and synthesisers. Guest singers included Roy Harper, who provided the lead vocals on "Have a Cigar", and Venetta Fields, who added backing vocals to "Shine On You Crazy Diamond". To promote the album, Pink Floyd released the double A-side single "Have a Cigar" / "Welcome to the Machine".

Wish You Were Here was certified gold in the UK and the US in its year of release and topped the charts in several European countries. By 2004, it had sold an estimated 13 million copies worldwide. It initially received mixed reviews; critics found its music uninspiring and inferior to Pink Floyd's previous work. It was later acclaimed as one of the greatest albums of all time, appearing on lists including Rolling Stone's list of the 500 greatest albums at which it was ranked at #264 in 2021. It was cited by the keyboardist, Richard Wright, and the guitarist, David Gilmour, as their favourite Pink Floyd album.