This is about the player born in 1984. For the player of the same name born in 1955, please see Sean Sullivan (b. 1955).

Sean Sullivan (born March 29, 1984 in Boston, Massachusetts) is an American defenceman playing for the Worcester Sharks of the American Hockey League.

He played for the Boston University Terriers from 2003 to 2007. The Phoenix Coyotes chose him 272nd overall in the 2003 NHL Entry Draft.

From 2007 to 2010 Sullivan played in the Coyotes' minor pro system with the Arizona Sundogs and the San Antonio Rampage. In 2010 he signed as a free agent with the San Jose Sharks.

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