Glen Harold Stassen (February 29, 1936 – April 26, 2014) was an American ethicist and Baptist theologian.
He was known for his work on theological ethics, political philosophy, and social justice and for developing the Just Peacemaking Theory regarding the comparative ethics of war and peace.
Stassen died in Pasadena, California at the age of 78.
He was the son of former Minnesota governor Harold Stassen.