The Avon River, an inland intermittent river of the Wimmera catchment, located in the Grampians and Wimmera regions of the Australian state of Victoria. Rising on the northern slopes of the Great Dividing Range, the Avon River flows north-westerly to reach its confluence with the Richardson River. The rivers of the Wimmera catchment drain into a series of ephemeral lakes that, whilst they do not directly empty into a defined watercourse, form part of the Murray River catchment of the Murray-Darling basin.

The Avon River rises on the northern slopes of the Great Dividing Range, near Beazleys Bridge, west of St Arnaud. The rivers flows in a highly meandering course generally west by north, joined by one minor tributary, before reaching its mouth to flow into the Richardson River at Banyena; northwest of Marnoo. The Avon River descends 62 metres (203 ft) over its 64-kilometre (40 mi) course.

In a western Kulin Aboriginal language the river and surrounding country is named Wityellibar, from witji "basket grass" bar "river"; and in the Djadjawurrung language, Kurakibiyal, with kurak meaning "sand" and biyal, meaning "red gum".

• List of rivers of Victoria

• "Wimmera-Avoca". Murray-Darling Basin Authority. Australian Government. 2014. Archived from the original on 23 October 2014. Retrieved 22 October 2014.
• "Avon/Richardson River longitudinal profile" (PDF). Murray-Darling Basin Authority (PDF). Australian Government. Archived from the original (PDF) on 15 February 2014. Retrieved 22 October 2014.
• "Wimmera". Our rivers. Environment Victoria.