This is a list of mayors of the city of Thun, Switzerland.
| Term | Mayor | Lifespan | Party | Notes |
|---|---|---|---|---|
| 1899–1909 | Emil Lohner | (1865–1959) | ||
| 1910-1919 | Unknown | (Unknown) | ||
| 1919–1926 | Paul Kunz | (1886–1967) | FDP/PRD | |
| 1927–1938 | Eduard Amstutz | (1873–1965) | FDP/PRD | |
| 1939–1952 | Paul Kunz | (1886–1967) | FDP/PRD | |
| 1952–1970 | Emil Baumgartner | (1905–1977) | FDP/PRD | |
| 1971–1990 | Ernst Eggenberg | (1931–1996) | SPS/PSS | |
| 1991–2010 | Hans-Ueli von Allmen | (born 1946) | SPS/PSS | |
| 2011–present | Raphael Lanz | (born 1968) | SVP/UDC |