Mayors of Marietta
| Chairman Town Meeting | |
| 1801-1803 | Rufus Putnam |
| 1804-1807 | Dudley Woodbridge |
| 1808 | Edwin Putnam |
| 1809 | Paul Fearing |
| 1810 | Seth Washburn |
| 1811-1813 | Icabod Nye |
| 1814 | Caleb Emerson |
| 1815 | John Brough |
| 1816 | Caleb Emerson |
| 1817-1818 | James Sharp |
| 1819 | Caleb Emerson |
| 1820-1821 | Icabod Nye |
| 1822 | John Clark |
| 1823-1824 | None |
| 1825 | Daniel H. Buell (Resigned and James M. Booth became Mayor) |
| Mayors | |
| 1826-1830 | James M. Booth |
| 1831-1832 | James Dunn |
| 1833-1835 | Nahum Ward |
| 1836-1841 | Anselm T. Nye |
| 1842-1843 | Daniel H. Buell (Died in office) |
| 1843-1848 | Louis Soyez |
| 1849 | Anselm T. Nye |
| 1850 | Louis Soyez |
| 1851-1853 | James Dunn |
| 1854-1855 | Daniel Protsman |
| 1856-1857 | William A. Whittlesey |
| 1858-1859 | Ethan H. Allen |
| 1860-1863 | William A. Whittlesey |
| 1864-1867 | Samuel S. Knowles- |
| 1868-1871 | Frederick A. Wheeler |
| 1872-1873 | John V. Ramsey |
| 1874-1877 | Jewett Palmer |
| 1878-1879 | William Glines |
| 1880-1881 | Rufus E. Harte |
| 1882-1883 | Charles W. Richards |
| 1884-1887 | Sidney Ridgeway |
| 1888-1889 | Josiah Coulter |
| 1890-1893 | Charles Richardson |
| 1894-1895 | Jewett Palmer |
| 1896-1897 | Edward Meisenhelder |
| 1898-1899 | Charles Richardson |
| 1900-1901 |
W. E. Sykes |
| 1902-1903 | Oscar W. Lambert |
| 1904-1905 | O. P. Hyde |
| 1906-1913 | Charles F. Leeper |
| 1914-1915 | David Okey |
| 1916-1917 | Val. B. Hovey |
| 1918-1919 | A. A. Crawford |
| 1920-1921 | William M. Sprague |
| 1922-1923 | G. B. H. Sanford |
| 1924-1925 | William M. Sprague |
| 1926-1929 | John W. Gray |
| 1930-1933 | F. A. Steadman |
| 1934-1937 | J. Morton Harper |
| 1938-1939 | P. W. Griffiths |
| 1940-1947 | Earl D. Schob(D) |
| 1948-3/9/52 | Joe C. Hartline(R) (Died in office) |
| . 3/9/52-1953 | Gerald E. Broughton(R) |
| 1954-1955 | Benjamin B. Cain(R) |
| 1954-1955 | Benjamin B. Cain(R) |
| 1956-1957 | Forester Farley(D) |
| 1958-1/15/65 | Don L. Curtis(R) (Resigned) |
| 1/16/65-12/31/65 | Ralph E. Gearhart(R) |
| 1966-1971 | John A. Burnworth(D) |
| 1972-1975 | James F. Schweikert(R) |
| 1976-1979 | Geoffrey D. Brunton(D) |
| 1980-1983 | George F. Cranston(R) |
| 1984-3/22/91 | Nancy Putnam Hollister(R) (Resigned) |
| 3/22/91-12/31/91 | Brooks Harper(R) |
| 1992-2003 | Joe A. Matthews(D) |
| 2004-2011 | Michael Mullen(D) |
| 2012-2020 | Joe A. Matthews(D) |
| 2020- | Josh Schlicher(R) |