Jeanmarie Simpson (born November 20, 1959 in Ray, Arizona) is an American peace activist and theatre/film artist.
The daughter of a Venezuelan-American mother and an American mining engineer father, Jeanmarie Simpson was raised in rural Arizona. Her family's move to Toronto, Canada in 1970 led to her theatre training. She is founding artistic director of the Nevada Shakespeare Company. She starred in the film version of her play, A Single Woman, based on the life of first US Congresswoman and lifelong pacifist, Jeannette Rankin.
Jeanmarie Simpson is a Lifetime Member of the Women's International League for Peace and Freedom, sitting on the National Board of the US Section as of June, 2006.