This is a list of mayors of Grenchen, Switzerland. The Stadtpräsident (earlier: Stadtammann) chairs the Gemeinderat, the executive of Grenchen/Granges.
| Term | Mayor | Lifespan | Party | Notes |
|---|---|---|---|---|
| 1818–1830 | Euseb Gast | |||
| 1830–1835 | Josef Girard | Liberals | ||
| 1835–1836 | Franz Schilt | |||
| 1836–1838 | Marx Schürer | |||
| 1838–1839 | Urs Güggi | |||
| 1840–1842 | Euseb Gast | |||
| 1842–1853 | Franz Schilt | |||
| 1853–1856 | Josef Luterbacher | |||
| 1856–1859 | Euseb Vogt | (1829–1912) | ||
| 1859–1866 | Franz Schilt | |||
| 1866–1899 | Euseb Vogt | (1829–1912) | ||
| 1899–1912 | Robert Luterbacher | (1846–1912) | SPS/PSS | |
| 1913–1919 | Hermann Guldimann | (1865–1919) | SPS/PSS | |
| 1919–1933 | Arthur Stämpfli | SPS/PSS | ||
| 1933–1960 | Adolf Furrer | (1897–1978) | SPS/PSS | |
| 1960–1990 | Eduard Rothen | (1925–2007) | SPS/PSS | |
| 1991–2013 | Boris Banga | (born 1949) | SPS/PSS | |
| 2014–present | François Scheidegger | FDP |
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