Daniel Joseph Ryan is an American politician to the Massachusetts House of Representatives. He is a Democrat from Boston, Massachusetts who was sworn on April 16, 2014 to represent the 2nd Suffolk seat. He won the March 4 primary and the April 1 special election called after the resignation of Eugene O'Flaherty.
As Vice Chair of the Mental Health, Substance Abuse Committee, Dan played an important role in the passage of legislation to help address the Opioid Epidemic in our Commonwealth.