| class="wikitable" style="text-align:center;"
!Order
!Image
!Name[{{Cite news|first= |last= |authorlink= |title="Jim" Dahlman Served Longest |newspaper=Omaha World-Herald|edition=Sunday|date=February 21, 1932|url= |page=40 |via=NewsBank}}]
{{small|(Birth–Death)}}
!Term began[Scalise, Larry. "Mayors of Omaha, Nebraska", Omaha Public Library http://www.omahapubliclibrary.org/subjects/society/history/mayors.html {{Webarchive|url=https://web.archive.org/web/20090512054719/http://www.omahapubliclibrary.org/subjects/society/history/mayors.html |date=May 12, 2009 }}][{{Cite news|first=James|last=Allen Flanery|authorlink= |title=Morgan Win Seen as End To Turbulent Time for City Boyle Theme Not Enough, Observers Say |newspaper=Omaha World-Herald|date=May 10, 1989|url= |page=1 |via=NewsBank}}]
!Term ended
!colspan="2"|Party affiliation
!Notes |
| 1
|100px
|Jesse Lowe
{{small|(1814–1868)}}
|March 5, 1857
|March 2, 1858
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
|[{{Cite news|first= |last= |authorlink= |title=How Title to a Large Part of Omaha Was Created: Story of an Exciting Period in the History of This City, as Told by the Late David D. Belden, Who Was Mayor in a Critical Time |newspaper=Omaha World-Herald|edition=Sunday|date=February 5, 1911|url= |page=23 |quote=But for some reason many of the best citizens did not want Mr. Lowe...The democratic [sic] convention for the nomination of municipal officers had been called and it was to assemble at 2 p. m., the very next day.|via=NewsBank}}] |
| 2
|100px
|Andrew Jackson Poppleton
{{small|(1830–1896)}}
|March 2, 1858
|September 14, 1858
(resigned)
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 3
|
|George Robert Armstrong
{{small|(1819-1896)}}
(interim mayor)
|September 14, 1858
|March 10, 1859
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 4
|
|David Douglas Belden
{{small|(1821-1897)}}
|March 10, 1859
|March 6, 1860
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 5
|
|Clinton Briggs
{{small|(1828-1882)}}
|March 6, 1860
|March 5, 1861
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 6
|
|George Robert Armstrong
{{small|(1819-1896)}}
|March 5, 1861
|November 5, 1862
(resigned)
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 7
|
|Benjamin Eli Barnet Kennedy
{{small|(1827-1916)}}
(interim mayor)
|November 5, 1862
|March 15, 1864
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 8
|
|Addison R. Gilmore
{{small|(1804-1866)}}
|March 15, 1864
|March 9, 1865
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
|[{{Cite news|first= |last= |authorlink= |title=Mary Louise Gilmore Dead: Was Formerly Well Known in the City of Omaha |newspaper=Omaha World-Herald|edition=Morning|date=April 4, 1906|url= |page=6 |quote=[Gilmore] came here from Illinois as the appointee of President Franklin Pierce and was an ardent adherent to the Douglas democracy of that day.|via=NewsBank}}] |
| 9
|100px
|Lorin Miller
{{small|(1800-1888)}}
|March 9, 1865
|March 6, 1867
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
|[{{Cite news|first= |last= |authorlink= |title=Colonel Lorin Miller Dead: A Pioneer of Nebraska and a Prominent Man in Its Early Days|newspaper=Omaha Daily Bee|edition=|date=August 1, 1888|url=https://www.newspapers.com/article/omaha-daily-bee-colonel-lorin-miller-dea/150786772/|page=2 |via=Newspapers.com|archive-url=| archive-date=}}] |
| 10
|
|Charles H. Brown
{{small|(1834-1897)}}
|March 6, 1867
|March 4, 1868
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 11
|
|George M. Roberts
{{small|(1843-1906)}}
|March 4, 1868
|June 7, 1869
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
|[{{Cite news|first= |last= |authorlink= |title=Office Sought the Man: Why Omaha Has So Few Ex-Mayors and Few Citizens Remember Them as Such |newspaper=Omaha World-Herald|edition=Sunday|date=September 27, 1891|url= |page=6 |via=NewsBank}}] |
| 12
|100px
|Ezra Millard
{{small|(1833-1886)}}
|June 7, 1869
|April 10, 1871
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 13
|100px
|Smith Samuel Caldwell
{{small|(1834-1884)}}
|April 10, 1871
|April 9, 1872
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 14
|100px
|Joseph Hopkins Millard
{{small|(1836-1922)}}
|April 9, 1872
|April 7, 1873
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 15
|
|William M. Brewer
{{small|(?-1921)}}
|April 7, 1873
|February 3, 1874
(resigned)
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
|[{{Cite news|first= |last= |authorlink= |title=Election Returns|newspaper=Omaha (Daily) Republican|date=April 3, 1873|url=https://news.google.com/newspapers?nid=iKz1iSBcTNcC&dat=18730403&printsec=frontpage&hl=en|page=4 |via=Google News|archive-url=| archive-date=}}] |
| 16
|
|James S. Gibson
{{small|(1835-1906)}}
(acting mayor)
|February 3, 1874
|April 13, 1874
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
|[{{Cite news|first= |last= |authorlink= |title=Passing of a Pioneer: James S. Gibson Dies at His Home in This City Sunday |newspaper=Omaha World-Herald|edition=Evening|date=April 2, 1906|url= |page=1|via=NewsBank}}][{{Cite news|first= |last= |authorlink= |title=Seven Democratic Councilmen Outvote Five Republicans, and Consequently Johnson Scoops Baumer|newspaper=Omaha Daily Bee|date=May 12, 1874|url=https://chroniclingamerica.loc.gov/lccn/sn99021999/1874-05-12/ed-1/seq-4/|page=4 |via=Chronicling America|archive-url=| archive-date=}}] |
| 17
|100px
|Champion S. Chase
{{small|(1820-1898)}}
|April 13, 1874
|April 9, 1877
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| First elected to a one-year term in 1874 and then to a two-year term in 1875 after Omaha extended the mayoral term to two years.[{{cite book|url=https://archive.org/details/omahaillustrated00omah |title= Omaha Illustrated: A History of the Pioneer Period and the Omaha of Today|publisher = D.C. Dunbar and Co.|year= 1888 |accessdate= June 2, 2019}}] |
| 18
|
|Reuben H. Wilbur
{{small|(1825-1898)}}
|April 9, 1877
|April 7, 1879
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
|[{{Cite news|first= |last= |authorlink= |title=Republican Ticket: Election: Tuesday, April 3, 1877|newspaper=Omaha Daily Bee|date=April 2, 1877|url=https://chroniclingamerica.loc.gov/lccn/sn99021999/1877-04-02/ed-1/seq-4/|page=4 |via=Chronicling America|access-date=December 16, 2024|archive-url=| archive-date=}}] |
| 19
|100px
|Champion S. Chase
{{small|(1820-1898)}}
|April 7, 1879
|April 12, 1881
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 20
|100px
|James E. Boyd
{{small|(1834-1906)}}
|April 12, 1881
|April 10, 1883
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 21
|100px
|Champion S. Chase
{{small|(1820-1898)}}
|April 10, 1883
|June 30, 1884
(removed from office)
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 22
|
|Patrick F. Murphy
{{small|(?-1885)}}
(acting mayor)
|June 30, 1884
|April 14, 1885
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
|[{{Cite news|first= |last= |authorlink= |title=The Death of Ex-Mayor Murphy |newspaper=Omaha Daily Bee|date=December 28, 1885|url=https://chroniclingamerica.loc.gov/lccn/sn99021999/1885-12-28/ed-1/seq-4/|page=4 |via=Chronicling America|archive-url=| archive-date=}}] |
| 23
|100px
|James E. Boyd
{{small|(1834-1906)}}
|April 14, 1885
|May 10, 1887
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 24
|100px
|William J. Broatch
{{small|(1841-1922)}}
|May 10, 1887
|January 7, 1890
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 25
|
|Richard C. Cushing
{{small|(1843-1913)}}
|January 7, 1890
|January 5, 1892
|bgcolor={{party color|Democratic Party (United States)}}|
|Democratic
| |
| 26
|100px
|George Pickering Bemis
{{small|(1838-1916)}}
|January 5, 1892
|January 7, 1896
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
| |
| 27
|100px
|William J. Broatch
{{small|(1841-1922)}}
|January 7, 1896
|May 12, 1897
[{{Cite news|first= |last= |authorlink= |title=Moores Takes the Reins: Assumes Control of the Mayor's Office—Thrilling Episode |newspaper=Omaha World-Herald|edition=Morning|date=May 12, 1897|url= |page=1 |via=NewsBank}}]
|bgcolor={{party color|Republican Party (United States)}}|
|Republican
|
|
