This is a list of mayors of St. John's, Newfoundland and Labrador.
Between 1888-1898 council consisted of five councillors elected by wards and two members appointed by the Newfoundland government. Then from 1898-1902 government by commission. In 1902, legislation passed that dictated a municipal council would be formed by six councillors-at-large and one mayor, elected by those citizens of St. John's who pay property taxes. The city council currently comprises 11 members: the Mayor, the Deputy Mayor and nine councillors, five which represent wards throughout the city and four that are elected at large.
thumb|400px|Danny Breen, current mayor of St. John's since 2017|alt=
{| class=wikitable
|+ Mayors of St. John's, Newfoundland and Labrador
! Mayor
! Term began
! Term ended
|-
|George Shea || June 19, 1902 || June 26, 1906
|-
|Michael Gibbs || June 26, 1906 || June 27, 1910
|-
|William Ellis || June 27, 1910 || July 1, 1914
|-
|Commission of Government || July 1, 1914 || June 29, 1916
|-
|William Gosling || June 29, 1916 || December 15, 1921
|-
|Tasker Cook || December 15, 1921 || December 9, 1929
|-
|Charles Howlett || December 9, 1929 || March 31, 1932
|-
|Andrew Carnell || March 31, 1932 || November 8, 1949
|-
|Henry G. R. Mews || November 8, 1949 || November 16, 1965
|-
|William G. Adams || November 16, 1965 || November 13, 1973
|-
|Dorothy Wyatt || November 13, 1973 || November 3, 1981
|-
|John Joseph Murphy || November 3, 1981 || November 13, 1990
|-
|Suzanne "Shannie" Duff || November 13, 1990 || November 9, 1993
|-
|John Joseph Murphy || November 9, 1993 || September 30, 1997
|-
|Andy Wells || September 30, 1997 || March 3, 2008
|-
|Dennis "Doc" O'Keefe (Acting) || March 3, 2008 || April 22, 2008
|-
|Suzanne "Shannie" Duff (Acting) || April 22, 2008 || June 9, 2008
|-
|Dennis "Doc" O'Keefe || June 9, 2008 || September 26, 2017
|-
|Danny Breen || September 26, 2017 || present
|}
;Notes
- On July 1, 1914, elected municipal government was suspended in favour of commission of government
See also
- 2021 Newfoundland and Labrador municipal elections