How many U.S. presidents never married? July 6, 2020September 20, 2011 by Pamela Landy Only one U.S. president was never married, James Buchanan (president 1857-61). Related Answers Which U.S. presidents were bachelors? How many presidents served in the armed forces? Who first said, “You can never be too rich or too thin”? Who was the most nominated actor who never won an Oscar? Who said, “I do not understand Don Meredith and I never will”? Were Adolf Hitler and Eva Braun ever married?