Leah Eudora Dunford Widtsoe (February 24, 1874 – June 8, 1965) was the wife of John A. Widtsoe, apostle of the Church of Jesus Christ of Latter-day Saints. She was a prominent figure in home economics education and co-authored several books. She was also a missionary for the church and also served as the leader of all woman's auxiliaries in Europe when her husband was presided as mission president.