This is a list of electoral results for the Electoral district of Mornington in Victorian state elections.
| First incarnation (1859–1967) | ||||
|---|---|---|---|---|
| Member | Party | Term | ||
| William Lyall | Unaligned | 1859–1861 | ||
| Henry Samuel Chapman | Unaligned | 1861–1862 | ||
| Sir James McCulloch | Unaligned | 1862–1872 | ||
| James Purves | Unaligned | 1872–1880 | ||
| James Gibb | Unaligned | 1880–1886 | ||
| Louis Smith | Unaligned | 1886–1894 | ||
| Alfred Downward | Unaligned | 1894–1929 | ||
| Herbert Downward | Country | 1929–1932 | ||
| Alfred Kirton | United Australia | 1932–1947 | ||
| Country | ||||
| William Leggatt | Liberal | 1947–1956 | ||
| Roberts Dunstan | Liberal | 1956–1967 | ||
| Second incarnation (1985–present) | ||||
| Member | Party | Term | ||
| Robin Cooper | Liberal | 1985–2006 | ||
| David Morris | Liberal | 2006–2022 | ||
| Chris Crewther | Liberal | 2022–present | ||