Ingalalla Waterfalls, Cascade waterfall in Hay Flat, Fleurieu Peninsula, Australia.

Ingalalla Waterfalls is a cascade waterfall on the Fleurieu Peninsula that descends over multiple tiers to a combined height between 81 and 92 meters. The system flows through steep rock faces and forms rock pools below where water crashes from the upper tiers.

The name received official approval on May 25, 2000, following a request from the Royal Automobile Association for naming clarification. The designation came from a process to standardize local place names across the region.

The adjacent Mount Hayfield holds deep meaning for the Kaurna Aboriginal people through the Tjilbruke Dreaming story and a yellow ochre creation site. This place remains spiritually significant to the local indigenous community.

A strenuous bush walk begins at the waterfall and tracks through parts of the Second Valley Forest around Mount Hayfield nearby. The falls lie about 8.3 km south of Yankalilla and 70 km south southwest of Adelaide, in the locality of Hay Flat.

The strenuous bush walk that begins at the falls crosses parts of the Second Valley Forest around Mount Hayfield, which the Kaurna people link to the Dreaming hero Tjilbruke, said to have created yellow ochre there. The falls drop from 253 m above sea level, and the name was only formalised on 25 May 2000 after the Royal Automobile Association asked which name to use.