"Sultans of Swing" is a song by the British rock band Dire Straits from their eponymous debut album, which band frontman Mark Knopfler wrote and composed. Although it was first released in 1978, it was its 1979 re-release that caused it to become a hit in both the UK and U.S.

The song was recorded at Pathway Studios, North London, in July 1977 and quickly acquired a following after it was put on rotation at Radio London. Its popularity soon reached record executives, and Dire Straits were offered a contract with Phonogram Records. The song was then re-recorded in February 1978 at Basing Street Studios for the band's debut album. The record company wanted a less-polished rock sound for the radio, so an alternative version was recorded at Pathway Studios in April 1978 and released as the single in some countries including the United Kingdom and Germany.

The music for "Sultans of Swing" was composed by Mark Knopfler on a National Steel guitar in an open tuning, though Knopfler did not think very highly of it at first. As he remembered, "I thought it was dull, but as soon as I bought my first in 1977, the whole thing changed, though the lyrics remained the same. It just came alive as soon as I played it on that ’61 Strat which remained my main guitar for many years and was basically the only thing I played on the first album and the new chord changes just presented themselves and fell into place."

Inspiration for the song came from witnessing a jazz band playing in the corner of a practically deserted pub in Deptford, South London. At the end of their performance, the lead singer announced that they were the "Sultans of Swing", and Knopfler found the contrast between the group's dowdy appearance and surroundings and their grandiose name amusing.

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