Susan Fessenden (née , Snowden; December 10, 1840 – September 12, 1932) was an American temperance worker, characterized as a progressive thinker upon all lines of reform. She served as president of the Massachusetts Woman's Christian Temperance Union (W.C.T.U.), National Lecturer for the W.C.T.U., and vice-president of the Massachusetts Woman's Suffrage Association. She was a leader and teacher of classes in parliamentary law. She also frequently responded to invitations to preach in Congregational, Baptist, and Methodist pulpits.