Margaret Falls is a waterfall on Christys Creek in the Kanangra area of the Greater Blue Mountains, New South Wales.

The creek flows south from the Kanangra Tops over several waterfalls down to the Kowmung River, and Margaret Falls marks the typical entry point for the popular Dione Dell canyoning trip.

The falls are a notable landmark for canyoners, with the base of the falls serving as a common rest stop before continuing downstream.

Christys Creek is a technically demanding canyon, characterised by slippery sandstone rocks and numerous abseils, many of which end in pools, making it primarily a summer undertaking.