Edward John "Ed" Markey (born July 11, 1946) is the U.S. Representative for Massachusetts's 7th congressional district, serving since 1976. He is a member of the Democratic Party. The district includes most of Boston's northern and western suburbs, such as Medford and Framingham. Markey is the Dean of both the Massachusetts and New England House delegations. He is the second-longest serving member of Congress from New England, behind Senator Patrick Leahy of Vermont.

Markey was born and raised in Malden, Massachusetts. He graduated from Boston College and Boston College Law School. He worked as an attorney and served in the United States Army Reserve for five years before being elected to the Massachusetts House of Representatives, where he served two terms as a state representative. In 1976 he won a crowded special election to succeed deceased incumbent Torbert Macdonald, and took office in November 1976.

In the U.S. House, Markey is a Progressive representative who has made energy policy his top priority. He sits on several energy committees and subcommittees, and is the former chairman of the Select Committee on Energy Independence and Global Warming.