Horatio Willis Dresser (January 15, 1866 – March 30, 1954) was a New Thought religious leader and author in the United States. In 1919 he became a minister of General Convention of the Church of the New Jerusalem, and served briefly at a Swedenborgian church in Portland, Maine. In addition to his writings on New Thought, Dresser is known for having edited two books of selected papers by Phineas Parkhurst Quimby. Both of Dresser's parents had studied with the mesmerist, who influenced the New Thought movement.