Séan Cannon (born 29 November 1940) is an Irish musician. Since 1982 he has been lead vocal and guitarist for the Dubliners.

He was born in Galway, Ireland. He travelled around Europe at an early age, rambling in England, Germany, Switzerland and Spain. It was during these trips that Cannon learned to speak several languages. He moved to England (where he still lives), and became a renowned solo artist, playing in almost every folk club in Britain (Including the Star Club in Digbeth Birmingham). By 1969, Cannon had joined an England-based folk group called The Gaels. (The Gaels consisted of three Irishmen and a Scotsman.) They released an album. He also released several solo albums, two of which were released in the 1970s.

Cannon had known the Dubliners for years and, like Eamonn Campbell, joined them on stage on numerous occasions. When Luke Kelly became ill, he stepped in, and became a full time Dubliner in 1982. Cannon still manages to do some solo work in between the touring. He plays gigs with his son, James Cannon. They call themselves The Cannons. Sean Cannon lives in Coventry, United Kingdom.

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