"Come On Eileen" is a song by English group Dexys Midnight Runners (credited to Dexys Midnight Runners and the Emerald Express), released in the UK on 25 June 1982 as a single from their album Too-Rye-Ay. It reached number one in the US, and was their second number one hit in the UK, following 1980's "Geno". The song was written by Kevin Rowland, Jim Paterson and Billy Adams; it was produced by Clive Langer and Alan Winstanley.

"Come On Eileen" won Best British Single at the 1983 Brit Awards and in 2015 the song was voted by the British public as the nation's sixth favourite 1980s number one in a poll for ITV. It was ranked number 18 on VH1's 100 Greatest Songs of the '80s.

There are various versions of the song, some in addition to the main section featuring either an intro of a Celtic fiddle solo, or an a cappella coda both based on Thomas Moore's Irish folk song "Believe Me, if All Those Endearing Young Charms".

The main section begins with a Celtic-style fiddle played over a drum beat, with the bass guitar and piano providing accompaniment.

The lyrics of the song begin with the lines:

The phrase "Come on Eileen" is used as the chorus to the song, which was loosely inspired by the song "A Man Like Me" by the 1960s British soul group Jimmy James and the Vagabonds.

The bridge of "Come On Eileen" features an improvised counter-melody which begins in a slow tempo and gets faster and faster over an accelerando vocal backing. The chord sequence of the bridge is actually the same as the verses, but transposed up by a whole tone.

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