Edward John "Ed" Markey (born July 11, 1946) has been a Democratic member of the United States House of Representatives since 1976, representing the 7th District of Massachusetts. Markey is the Dean of both the Massachusetts and New England House delegations. He is the third-longest serving member of Congress from New England, behind Senators Ted Kennedy of Massachusetts and Patrick Leahy of Vermont.

Markey was born in Malden, Massachusetts, and was educated at Malden Catholic High School, Boston College and Boston College Law School. He served in the United States Army Reserve, and was a lawyer and member of the Massachusetts House of Representatives representing Malden and Melrose before entering the House in 1976.

He is a member of the Congressional Progressive Caucus. The National Journal generally gave him a "Composite Liberal" score in the mid-90s. Since May 2005, he has been a contributing blogger at The Huffington Post.