Marc Dann (born March 12, 1962 in Cleveland, Cuyahoga County, Ohio), was an American politician of the Democratic Party, who served as the Attorney General of Ohio from 2007 until his resignation on May 14, 2008.

Dann earned a bachelor of arts degree in 1984 from the University of Michigan and a law degree in 1987 from Case Western Reserve University.

Dann practiced law in Youngstown, Ohio and became active in Democratic Party politics. He was reprimanded in 2004 by the Ohio Supreme Court for handling a 2002 alimony case without proper preparation.