Avon was an electoral district of the Legislative Assembly in the Australian state of Western Australia from 1911 to 2008.
A boundary redistribution occasioned by electoral reforms in 1987 brought in more rural areas and ensured its continuing safety for the National Party.
Avon was abolished when the number of rural seats was reduced as a result of the one vote one value reforms.
At the time of its abolition Avon was a rural electorate covering the eastern side of the Darling Scarp.
Its main population centres included Northam, York, Beverley, Brookton, Pingelly, Boddington, Wandering, Popanyinning, Cuballing and Wickepin.