List
edit| No. | Portrait | Mayor | Party[1] | Sworn in | Left office | Comments |
|---|---|---|---|---|---|---|
| 1 | Solomon Juneau (1793–1856) |
Democrat | 1846 | 1846 | ||
| 2 | Horatio Wells (1808–1858) |
Democrat | 1847 | 1847 | ||
| 3 | Byron Kilbourn (1801–1870) |
Democrat | 1848 | 1848 | ||
| 4 | Don A. J. Upham (1809–1877) |
Democrat | 1849 | 1850 | ||
| 5 | George H. Walker (1811–1866) |
Democrat | 1851 | 1851 | ||
| 6 | Hans Crocker (1815–1889) |
Democrat | 1852 | 1852 | ||
| 7 | George H. Walker (1811–1866) |
Democrat | 1853 | 1853 | His second, nonconsecutive term | |
| 8 | Byron Kilbourn (1801–1870) |
Democrat | 1854 | 1854 | His second, nonconsecutive term | |
| 9 | James B. Cross (1819–1876) |
Democrat | 1855 | 1857 | ||
| 10 | William A. Prentiss (1799–1892) |
Republican | 1858 | 1859 | ||
| 11 | Herman L. Page (1818–1873) |
Democrat | 1859 | 1859 | ||
| 12 | William Pitt Lynde (1817–1885) |
Democrat | 1860 | 1860 | ||
| 13 | James S. Brown (1824–1878) |
Democrat | 1861 | 1861 | Elected without opposition. Did not run for re-election. | |
| 14 | Horace Chase (1810–1886) |
Democrat | 1862 | 1862 | ||
| 15 | Edward O'Neill (1820–1890) |
Democrat | 1863 | 1863 | ||
| 16 | Abner Kirby (1818–1893) |
Democrat | 1864 | 1864 | ||
| 17 | John J. Tallmadge (1818–1873) |
Democrat | 1865 | 1866 | ||
| 18 | Edward O'Neill (1820–1890) |
Democrat | 1867 | 1870 | His second, nonconsecutive term | |
| 19 | Joseph Phillips (1825–1906) |
Democrat | 1870 | 1871 | ||
| 20 | Harrison Ludington (1812–1891) |
Republican | 1871 | 1872 | ||
| 21 | David G. Hooker (1830–1888) |
Democrat | 1872 | 1873 | ||
| 22 | Harrison Ludington (1812–1891) |
Republican | 1873 | 1876 | His second, nonconsecutive term | |
| 23 | Ammi R. R. Butler (1821–1901) |
Democrat | 1876 | 1878 | ||
| 24 | John Black (1830–1899) |
Democrat | 1878 | 1880 | ||
| 25 | Thomas H. Brown (1839–1908) |
Republican | 1880 | 1882 | ||
| 26 | John M. Stowell (1824–1907) |
Democrat | 1882 | 1884 | ||
| 27 | Emil Wallber (1841–1923) |
Republican | 1884 | 1888 | ||
| 28 | Thomas H. Brown (1839–1908) |
Republican | 1888 | 1890 | His second, nonconsecutive term | |
| 29 | George W. Peck (1840–1916) |
Democrat | 1890 | November 11, 1890 | Resigned to become Governor of Wisconsin | |
| 30 | Peter J. Somers (1850–1924) |
Democrat | December 6, 1890 | June 5, 1893 | Resigned after being elected to the House of Representatives | |
| – | Henry Hase (1847–1929) |
June 5, 1893 | July 1, 1893 | Acting Mayor | ||
| 31 | John C. Koch (1841–1907) |
Republican | 1893 | 1896 | ||
| 32 | William C. Rauschenberger (1855–1918) |
Republican | 1896 | 1898 | ||
| 33 | David S. Rose (1856–1932) |
Democrat | 1898 | 1906 | ||
| 34 | Sherburn M. Becker (1876–1949) |
Republican | 1906 | 1908 | ||
| 35 | David S. Rose (1856–1932) |
Democrat | 1908 | 1910 | His second, nonconsecutive term | |
| 36 | Emil Seidel (1864–1947) |
Socialist | 1910 | 1912 | ||
| 37 | Gerhard A. Bading (1870–1946) |
Republican-Democrat Fusion | 1912 | 1916 | ||
| 38 | Daniel Hoan (1881–1961) |
Socialist | 1916 | April 16, 1940 | ||
| 39 | Carl Zeidler (1908–1942) |
Democrat | April 16, 1940 | April 8, 1942 | Resigned to fight in World War II, in which he was killed | |
| 40 | John Bohn (1872–1955) |
Nonpartisan | April 8, 1942 | April 20, 1948 | Interim mayor until being officially elected in 1944 | |
| 41 | Frank Zeidler (1912–2006) |
Socialist | April 20, 1948 | April 19, 1960 | ||
| 42 | Henry Maier (1918–1994) |
Democrat | April 19, 1960 | April 19, 1988 | ||
| 43 | John Norquist (born 1949) |
Democrat | April 18, 1988 | January 1, 2004 | Resigned to head the Congress for the New Urbanism | |
| Marvin Pratt (born 1944) |
Democrat | January 1, 2004 | April 20, 2004 | Acting mayor, first African American mayor of Milwaukee | ||
| 44 | Tom Barrett (born 1953) |
Democrat | April 20, 2004 | December 22, 2021 | Resigned to become U.S. Ambassador to Luxembourg | |
| 45 | Cavalier Johnson (born 1986) |
Democrat | December 22, 2021 | present | First elected African American mayor of Milwaukee |
- ^ As of 1914, the office of mayor of Milwaukee is officially nonpartisan.