All Republican Presidents: A Complete Reference List

The Republican Party has placed 19 individuals in the White House across its history, from Abraham Lincoln in 1861 through Donald Trump's second term beginning in 2025. This reference page documents each Republican president in chronological order, covering the scope of the list, the mechanics of party affiliation in presidential elections, notable patterns across administrations, and the boundaries that define who qualifies for inclusion. Understanding this roster provides essential context for studying GOP electoral history and the long arc of conservative governance in the United States.

Definition and scope

A Republican president, for the purposes of this reference, is any individual who held the office of President of the United States and was elected or elevated to that office while affiliated with the Republican Party. The Republican Party was founded in 1854, which means the list begins with the 1860 election — no president before Abraham Lincoln qualifies under this definition regardless of political philosophy.

The complete chronological list of Republican presidents is as follows:

  1. Abraham Lincoln — 16th president, 1861–1865
  2. Ulysses S. Grant — 18th president, 1869–1877
  3. Rutherford B. Hayes — 19th president, 1877–1881
  4. James A. Garfield — 20th president, 1881 (assassinated in office)
  5. Chester A. Arthur — 21st president, 1881–1885 (elevated from VP)
  6. Benjamin Harrison — 23rd president, 1889–1893
  7. William McKinley — 25th president, 1897–1901 (assassinated in office)
  8. Theodore Roosevelt — 26th president, 1901–1909 (elevated from VP)
  9. William Howard Taft — 27th president, 1909–1913
  10. Warren G. Harding — 29th president, 1921–1923 (died in office)
  11. Calvin Coolidge — 30th president, 1923–1929 (elevated from VP)
  12. Herbert Hoover — 31st president, 1929–1933
  13. Dwight D. Eisenhower — 34th president, 1953–1961
  14. Richard Nixon — 37th president, 1969–1974 (resigned)
  15. Gerald Ford — 38th president, 1974–1977 (never elected president or VP by popular vote)
  16. Ronald Reagan — 40th president, 1981–1989
  17. George H. W. Bush — 41st president, 1989–1993
  18. George W. Bush — 43rd president, 2001–2009
  19. Donald Trump — 45th president, 2017–2021; 47th president, 2025–present

This list is drawn from records maintained by the Miller Center at the University of Virginia and corroborated by the White House Historical Association.

How it works

Presidential party affiliation is determined by the party under whose banner a candidate sought the presidency or, in the case of succession, the party with which the elevated official was formally registered. The Republican Party nominates its standard-bearer through a primary and caucus system culminating in the Republican National Convention, where delegates formally cast nominating votes (GOP Delegate Selection Rules).

A candidate wins the presidency by securing 270 or more Electoral College votes. The total Electoral College count stands at 538 electors, apportioned among the 50 states and the District of Columbia. Republican presidents have won the Electoral College while losing the national popular vote on two occasions in the modern era: George W. Bush in 2000 and Donald Trump in 2016, per Federal Election Commission certified results.

Of the 19 Republican presidents on this list, 5 reached the Oval Office through succession rather than direct election to the presidency: Arthur, Theodore Roosevelt, Coolidge, Ford, and partially Johnson (though Andrew Johnson was not a Republican). Gerald Ford holds the unique distinction of having been confirmed as Vice President under the 25th Amendment and then succeeding to the presidency — meaning he was never placed on a national ballot for either office.

Common scenarios

Several recurring patterns define how Republican presidents have come to and left office:

Assassination and succession — 3 Republican presidents died by assassination (Lincoln, Garfield, McKinley), triggering succession in each case. Arthur and Theodore Roosevelt both entered the presidency this way.

Death in office from natural causes — Harding died in office in 1923, elevating Coolidge.

Resignation — Nixon resigned on August 9, 1974, the only president in U.S. history to do so, elevating Ford (National Archives, Nixon Resignation Letter).

Two non-consecutive terms — Donald Trump won the presidency in 2016, lost reelection in 2020, and won again in 2024, making him the second president in U.S. history to serve non-consecutive terms. The first was Democrat Grover Cleveland (22nd and 24th president). Trump is therefore counted once on this list for the purposes of counting distinct individuals but holds both the 45th and 47th presidential designations.

Dynasty — George H. W. Bush (41st) and George W. Bush (43rd) represent the second father-son presidential pair in U.S. history, after John Adams and John Quincy Adams.

Decision boundaries

Determining who belongs on this list requires resolving edge cases:

Andrew Johnson is excluded. Although he served as Lincoln's vice president on a National Union ticket in 1864, Johnson was a Democrat by registration and did not govern as a Republican. The National Union ticket was a wartime coalition branding, and Johnson was never a member of the Republican Party (Miller Center, Andrew Johnson biography).

Theodore Roosevelt's 1912 candidacy does not create a separate entry. Roosevelt ran as the Progressive (Bull Moose) Party candidate in 1912 after his Republican presidency, but his listing on this reference reflects his presidential service (1901–1909) under the Republican banner, not his later third-party run.

Gerald Ford's eligibility is confirmed despite the absence of a popular election. Constitutional succession under the 25th Amendment, ratified in 1967, provides a lawful path to the presidency (National Archives, 25th Amendment). Ford is a Republican president by formal party registration and governance record.

For broader context on the party's foundational principles and how they have shaped presidential agendas, see GOP Founding Principles and the Republican Party Platform. A full overview of the party's structure and scope is available at the site index.

References

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