Mount Buninyong /ˈbʌnɪnjɒŋ/ is an extinct volcano in western Victoria, Australia rising to 745 metres (2,444 ft) AHD.

The mountain was originally named Mount Bonan Yowing, which is said to derive from an Aboriginal word meaning 'a man lying on his back with his knee raised'.

Much of the mountain was cleared for agriculture or housing, but widespread protests during the 1980s led to the preservation of native forest cover on much of the upper portion.

The Keyeet balug clan of the Wada Wurrung (or Wathaurong) tribe occupied the Mount Buninyong area.

[2] Mount Buninyong was an important navigation peak for the early colonisers heading west for pastoral occupation.