This is a list of mayors of Nyon, Vaud, Switzerland. The mayor (syndic) of Nyon chairs the seven-member council (Municipalité).
| Term | Mayor | Lifespan | Party | Notes |
|---|---|---|---|---|
| 1894–1931 | Louis Bonnard | (1853–1931) | ||
| 1946–1953 | Henri Bally | (1902–1980) | POP (until 1952) | |
| 1954–1969 | Alfred Michaud | (1914–1990) | ||
| 1970 | Roger Blanc | (1920–1993) | ||
| 1971–1973 | Maurice Ruey | (1909–2008) | ||
| 1972–1985 | Michel Hans | (1922-2017) | Parti Indépendant Nyonnais | |
| 1986–2001 | Jacques Locatelli | |||
| 2001–2007 | Alain-Valéry Poitry | (born 1952) | PSS (until 2006) | destituted after moving to Prangins |
| 2008–present | Daniel Rossellat | (born 1953) |