Bunyip is a broad and varied name for a dangerous or uncanny being associated with billabongs, swamps, rivers, and lagoons in Aboriginal Australian traditions. Descriptions differ widely, ranging from a great serpent or furred animal to an unseen presence known chiefly by its cry. Colonial retellings often turned the figure into a simple monster, while its older cultural settings carry warnings about particular waters and places. In poetry, the Bunyip can guard ecological memory, voice the unknown beneath still surfaces, or challenge the urge to explain every wilderness.

The bunyip is a water monster from Aboriginal Australian traditions, although descriptions differ greatly among communities and regions. It is associated with swamps, billabongs, rivers, and other dangerous waters, where its cry or presence warns people to keep away. In modern writing, use cultural care because Aboriginal traditions are diverse. Related ideas include guardian monsters, landscape spirits, and cautionary folklore.