What is the highest waterfall in Australia by single drop?

The highest waterfall in Australia by single drop is Wallaman Falls. Its main horsetail drop descends 268 metres, making it the country’s tallest uninterrupted waterfall section.

Wallaman Falls is on Stony Creek in Girringun National Park, Queensland, where the creek drops from the Atherton Tableland toward the Herbert River. Including its smaller cascades above the main plunge, the waterfall descends about 305 metres in total.

The falls lie within the Wet Tropics of Queensland, a UNESCO World Heritage-listed rainforest region. A deep pool lies at the base of the main drop, and the waterfall’s flow changes noticeably with rainfall.

A common mix-up is confusing “highest” with the longest or greatest total descent. Wallaman Falls is the accepted answer because the question specifies a single drop; other Australian waterfalls may have greater combined cascades or different measurements.