Mike Callaghan (born March 31, 1963) is a former Assistant United States Attorney and a politician.
He attended Richwood High School and the University of Virginia, where he obtained a bachelor's degree in engineering.
For nine years, Callaghan was as an Assistant U.S. Attorney for the Southern District of West Virginia, serving from 1997 until 2001 as head of the criminal division.
In 2001, Mike was appointed Secretary of the Department of Environmental Protection by then Governor Bob Wise.
He was honored at the 2004 Jefferson-Jackson Dinner with the Franklin D. Roosevelt award, naming him the West Virginia Democrat of the Year.