William Jewett Tucker (July 13, 1839 – September 29, 1926) was an American Congregational minister who served as the 9th President of Dartmouth College in New Hampshire, United States, from 1893 to 1909.

One of the college's most beloved leaders, William Jewett Tucker was said to have "refounded Dartmouth," bringing its facilities, its curriculum and every aspect of its organization into the modern era.

When he assumed the presidency in 1893, the college was in debt, there were only slightly over 300 students and there was no central physical facilities plant.

Tireless in his efforts to build the physical college, President Tucker was also equally devoted to articulating a moral and spiritual dimension for Dartmouth and for higher education nationwide.

William Jewett Tucker graduated from Dartmouth in 1861 and studied for the ministry at Andover Theological Seminary.