The current Mayor of Ann Arbor is John Hieftje.

Past Mayors have been (shamelessly copied from the City's webpage, and in need of formatting and possibly putting in reverse chronological order):

The 1st Village President was John Allen (1834) Ann Arbor was incorporated as a city on April 4, 1851

MAYOR and TERM

• George Sedgwick 1851-55
• James Kingsley 1855-56
• William S. Maynard 1856-58, 1865-66
• Philip Bach 1858-59
• Robert J. Barry 1859-61
• John F. Miller 1861-62
• Charles Spoor 1862-63
• Ebenezer Wells 1863-65
• Oliver M. Martin 1866-68
• Christian Eberbach 1868-69
• A.H. Partridge 1869-70
• William D. Harriman 1870-71, 1883-85
• Silas H. Douglass 1871-73
• Hiram J. Beakes 1873-75
• Edward D. Kinne 1875-77
• Densmore Cramer 1877-78
• Willard B. Smith 1878-80, 1887-88
• John Kapp 1880-83, 1885-86
• John Robison 1886-87
• Samuel W. Beakes 1888-90
• Charles H. Manly 1890-91
• William G. Doty 1891-93
• Bradley M. Thompson 1893-94
• Cyrenus G. Darling 1894-95

In March, 1895, the term of Office of Mayor and President of Council was extended to two years.

• Warren E. Walker 1895-97
• Charles E. Hiscock 1897-99
• Gottlob Luick 1899-1901
• Royal S. Copeland 1901-03
• Arthur Brown 1903-05
• Francis M. Hamilton 1905-07
• James C. Henderson 1907-09
• William L. Walz 1909-13
• Dr. R.G. MacKenzie 1913-15
• Charles A. Sauer April-December, 1915 (Died December 6, 1915)
• Ernst M. Wurster as Acting Mayor 1915-17
• Ernst M. Wurster 1917-21
• George E. Lewis 1921-25
• Robert A. Campbell 1925-27, 1933-37
• Edward W. Staebler 1927-31
• H. Wirt Newkirk 1931-33
• Walter C. Sadler 1937-41
• Leigh J. Young 1941-45
• William E. Brown Jr. 1945-57
• Samuel J. Eldersveld 1957-59
• Cecil O. Creal 1959-65
• Wendell E. Hulcher 1965-69
• Robert J. Harris 1969-73
• James E. Stephenson 1973-75
• Albert H. Wheeler 1975-78
• Louis D. Belcher 1978-85
• Edward C. Pierce 1985-87
• Gerald D. Jernigan 1987-91
• Elizabeth S. Brater 1991-93
• Ingrid B. Sheldon 1993-2000
• John Hieftje 2000-present