Eleanor Hoyt Brainerd (January 31, 1868 – March 18, 1942) was an American author of the early 20th century. She published at least 10 novels, mostly written for young women.
Eleanor was born at Plum Grove Historic House, the historic home of Robert Lucas, in Iowa City. Her parents, Walter Hoyt and Louisa Smith were active in the abolitionist movement, Walter's family helped found the Eleutherian College. Eleanor's 1919 novel, Our Little Old Lady, is a biography of her parents.