Gibraltar Falls, Cascade waterfall in Namadgi National Park, Australia.

Gibraltar Falls is a waterfall in Namadgi National Park, Australian Capital Territory, dropping roughly 50 meters over a steep rock face. The vertical water flow is clearly visible from a designated viewing platform.

Axe grinding grooves cut into the rock show Aboriginal use of the site before European settlement. In 1966 John Perceval painted "Rescue at Gibraltar Falls", using a landscape architect from the Australian National University as the model for its figure. The Australian Heritage Commission later commissioned "An archaeological investigation of the Gibraltar Falls recreation area, A.C.T." The 170-hectare Gibraltar Falls / Woods Reserve Area is listed on the Register of the National Estate and the ACT National Heritage list.

Axe grinding grooves cut into the rock at the falls record Aboriginal use of the site, and the Gibraltar Falls / Woods Reserve Area is listed on the Register of the National Estate. The falls also appear in John Perceval's 1966 oil painting Rescue at Gibraltar Falls, modelled on an ANU landscape architect.

The site is reached by a short walk from a nearby car park, with free access to the viewing platform. Visitors will find public restrooms and picnic areas with gas barbecues available for a longer stay.

A 1966 oil painting by John Perceval, Rescue at Gibraltar Falls, depicts the cascade; the figure in it was modelled on a landscape architect from the Australian National University. Axe grinding grooves have also been found at the falls, and the Gibraltar Falls / Woods Reserve Area, about 170 hectares, is listed on the Register of the National Estate.