J. Patrick O'Neill (born January 14, 1971) is an American attorney and former Democratic member of the Rhode Island House of Representatives, who represented the 59th District from 2005 to 2015. He served on the House Committees on Judiciary, and Rules. On February 11, 2010, he was elected as Majority Whip of the House of Representatives
He stepped down as House Majority Whip under suspicious circumstances in October 2012.