The following is a list of 48 mayors of Indianapolis, Indiana. The mayor is the chief executive in the Government of Indianapolis, and is elected to a four-year term beginning January 1 following the general election. Six mayors have had non-consecutive terms. There are no term limits for mayor; the longest-serving mayor was William H. Hudnut III, who served four terms. The office of the mayor is on the top floor of the Indianapolis City-County Building.
| Mayor | Term Began | Term Ended | Political Party |
|---|---|---|---|
| Samuel Henderson | 1847 | 1849 | Whig |
| Horatio C. Newcomb | 1849 | 1851 | Whig |
| Caleb Scudder | 1851 | 1854 | Whig |
| James McCready | 1854 | 1856 | Democratic |
| Henry F. West | 1856 | 1856 | Democratic |
| Charles G. Coulon | 1856 | 1856 | Democratic |
| William J. Wallace | 1856 | 1858 | Republican |
| Samuel D. Maxwell | 1858 | 1863 | Republican |
| John Caven (first term) | 1863 | 1867 | Republican |
| Daniel McCauley | 1867 | 1873 | Republican |
| James L. Mitchell | 1873 | 1875 | Democratic |
| John Caven (second term) | 1875 | 1881 | Republican |
| Daniel W. Grubbs | 1881 | 1884 | Republican |
| John L. McMaster | 1884 | 1886 | Republican |
| Caleb S. Denny (first term) | 1886 | 1890 | Republican |
| Thomas L. Sullivan | 1890 | 1893 | Democratic |
| Caleb S. Denny (second term) | 1893 | 1895 | Republican |
| Thomas Taggart | 1895 | 1901 | Democratic |
| Charles A. Bookwalter (first term) | 1901 | 1903 | Republican |
| John W. Holtzman | 1903 | 1906 | Democratic |
| Charles A. Bookwalter (second term) | 1906 | 1910 | Republican |
| Samuel L. Shank (first term) | 1910 | 1913 | Republican |
| Henry R. Wallace | 1913 | 1914 | Republican |
| Joseph E. Bell | 1914 | 1918 | Democratic |
| Charles W. Jewett | 1918 | 1922 | Republican |
| Samuel L. Shank (second term) | 1922 | 1926 | Republican |
| John L. Duvall | 1926 | 1927 | Republican |
| Claude E. Negley | 1927 | 1927 | Republican |
| Ert Slack | 1927 | 1930 | Democratic |
| Reginald H. Sullivan (first term) | 1930 | 1935 | Democratic |
| John W. Kern, Jr. | 1935 | 1937 | Democratic |
| Walter C. Boetcher | 1937 | 1939 | Democratic |
| Reginald H. Sullivan (second term) | 1939 | 1943 | Democratic |
| Robert Tyndall | 1943 | July 9, 1947 | Republican |
| George L. Denny | July 9, 1947 | January 1, 1948 | Republican |
| Albert G. Feeney | January 1, 1948 | November 12, 1950 | Democratic |
| Philip L. Bayt, Jr. (first term) | November 12, 1950 | November 24, 1951 | Democratic |
| Christian J. Emhardt | November 24, 1951 | January 1, 1952 | Democratic |
| Alex M. Clark | January 1, 1952 | January 1, 1956 | Republican |
| Philip L. Bayt, Jr. (second term) | January 1, 1956 | January 1, 1959 | Democratic |
| Charles H. Boswell | January 1, 1959 | August 6, 1962 | Democratic |
| Albert H. Losche | August 6, 1962 | January 1, 1964 | Democratic |
| John J. Barton | January 1, 1964 | January 1, 1968 | Democratic |
| Richard G. Lugar | January 1, 1968 | January 1, 1976 | Republican |
| William H. Hudnut III | January 1, 1976 | January 1, 1992 | Republican |
| Stephen Goldsmith | January 1, 1992 | January 1, 2000 | Republican |
| Bart Peterson | January 1, 2000 | January 1, 2008 | Democratic |
| Greg Ballard | January 1, 2008 | Present | Republican |