Twin Falls is a waterfall on the Snake River in the Snake River Canyon of south-central on border of Twin Falls and Jerome counties in Idaho, United States, a few miles east of its namesake city, Twin Falls.

The falls are upstream (east) of Pillar Falls and Shoshone Falls and just downstream from Milner Dam.

Water flows westward over Twin Falls and is controlled by the Twin Falls Dam, built in the 1930s and used for irrigation and hydroelectric power generation. There were originally two parallel falls, but the dam permanently diverted the flow from the southern falls, leaving a single (north) waterfall.

Before the dam, very high flow rates could result in a smaller third falls, to the south.

• List of waterfalls in Idaho

• Visit Southern Idaho - Waterfalls