The Most Important Leaders in U.S. History

Mel Judson
Updated July 1, 2025 328.7K views 222 items
Ranked By
20.3Kvoters314.9Kvotes
65reranks
Voting Rules
American leaders only. Note: "Most important" or "most influential" does not equal "best."

List of the most important leaders in U.S. history. Love 'em or hate 'em, these leaders shaped American history from its founding through today. Men and women who have truly defined America through their work and leadership, even if it did not mean serving political office, are ranked here on this master list of leaders. Pioneers who changed the landscape, from the Civil Rights Movement, to Women's Suffrage, to the atom bomb, appear on this list of American leaders who changed the world.

The most important American presidents are ranked here, like Harry S. Truman and George Washington to name a few, along with First Ladies like Eleanor Roosevelt. Industry leaders like Andrew Carnegie and John D. Rockefeller cannot be overlooked, nor can leaders who were not in the U.S. government itself, such as Martin Luther King, Jr. and Susan B. Anthony.

Leadership takes many forms throughout American history, and famous American leaders pervade all of history, but this list gives props to those who were the most influential. Vote up the most important U.S. leaders below, or if the United States is too small for you, make sure to peruse this list of The Most Important Leaders in World History.
Most divisive: Henry Clay
Over 20.3K Ranker voters have come together to rank this list of The Most Important Leaders in U.S. History
This list is dynamically ranked based on user voting. The order reflects the consensus of our voters and is not influenced by paid placements or editorial bias.
Ranked by
  • George Washington
    1
    Dec. at 67 (1732-1799)
    7,868 votes
    • Birthplace: Popes Creek, Colony of Virginia, British America
  • Benjamin Franklin
    2
    Dec. at 84 (1706-1790)
    5,756 votes
    • Birthplace: Boston, Massachusetts, USA
  • Abraham Lincoln
    3
    Dec. at 56 (1809-1865)
    7,474 votes
    • Birthplace: Hodgenville, Kentucky, USA
  • Theodore Roosevelt
    4
    Dec. at 60 (1858-1919)
    4,822 votes
    • Birthplace: New York City, Manhattan, USA, New York
  • Thomas Jefferson
    5
    Dec. at 83 (1743-1826)
    6,141 votes
    • Birthplace: Shadwell, Colony of Virginia, British America
  • Martin Luther King, Jr.
    6
    Dec. at 39 (1929-1968)
    6,655 votes
    • Birthplace: Georgia, USA, Atlanta