Avon Viaduct may refer to any of several bridges crossing the various Rivers Avon:

• Avon Viaduct, Linlithgow, Scotland (crosses the Falkirk Avon)
• Avon Aqueduct (crosses the Falkirk Avon)
• Brandon Viaduct, Warwickshire, England (also known as the "Avon Viaduct"; crosses the Warwickshire Avon)
• Midland Counties Railway Viaduct, Rugby (sometimes referred to as the "Avon Viaduct"; crosses the Warwickshire Avon)
• Avon Bridge, Bristol (crosses the Bristol Avon)