The following is a list of mayors of the city of Waterloo, Iowa, United States.
| Elections in Iowa |
|---|
 |
- Romaine Adrian Whitaker, 1868-1873 [2]
- Lewis Lichty, 1873-1877, 1882-1885 [2]
- Matt Parrott, 1877-1880 [2] [3]
- Joseph Hay Kuhns, 1880-1882, 1885-1889 [2]
- Samuel J. Hoot, 1889-1893 [2]
- James M. Groat, 1893-1899 [2]
- John W. Krapfel, 1899-1901 [2]
- Philo J. Martin, 1901-1906 [2]
- John R. Rector, 1906-1908, 1910-1912 [2] [4]
- Roy Archer Doty, 1908-1910 [2]
- Rea C. Thompson, 1912-1916, 1918-1919 [2] [5] [6]
- William Richard "Bob" Law, 1916-1917 [7]
- Thomas E. Leeper, 1919-1920 [6]
- Nelson Woodruff Frisbie, 1920-1921 [7]
- Stephen D. Brown, 1921-1922 [7]
- Andrew Earl Gnagy, c.1922-1926 [7]
- Glenn A. Tibbitts, c.1926-1929 [8]
- Dr. Edward E. Peek, c.1929-1930 [9]
- Melanthon J. Morgan, c.1930-1936 [10]
- Ralph B. Slippy, c.1936-1946 [5]
- Stanley B. Shane, c.1946 [11]
- Knapp F. Matthews, c.1946-1947 [12]
- Robert R. Buckmaster, c.1947-1948 [13]
- William Bailey Barnes, c.1948-1950 [5] [14]
- Lawrence A. "Pat" Touchae, c.1950-1956 [5] [15]
- Glenn S. Stech, c.1956-1958 [16]
- Ed Jochumsen, c.1958-1965 [5] [17]
- Lloyd L. Turner, c.1966-1973 [17] [18]
- Leo P. Rooff, c.1974-1983 [18]
- Delman "Del" Bowers, c.1984-1985 [19]
- Bernard (Bernie) L. McKinley, c.1986-1991 [19] [20]
- Albert (Al) C. Manning Jr., c.1992-1993 [20]
- John R. Rooff III, 1994-2003 [21] [22]
- Timothy J. Hurley, 2004-2009 [23]
- Buck Clark, 2010-2015 [24]
- Quentin M. Hart, 2016-present [25]