Barbara Lynn McQuade[1] (born December 22, 1964)[2] is an American lawyer who served as the United States Attorney for the Eastern District of Michigan from 2010 to 2017.

McQuade also joined with other law enforcement leaders to launch Detroit One, a violence reduction strategy and community partnership.

She served as deputy chief of the National Security Unit, where she prosecuted cases involving terrorism financing, foreign agents, export violations, and threats.

She helped expose Detroit-area cancer specialist Farid Fata as the mastermind of one of the largest health care frauds in American history.

In 2017, McQuade became a regular contributor to MSNBC, initially commenting primarily on purported scandals related to President Donald Trump, though the range of topics she analyzes has become broader over time.