Mount Mendel, Mountain peak in Kings Canyon National Park, Fresno County, California, United States

Mount Mendel is a 4,176-metre peak in the Evolution Region of the Sierra Nevada, within Kings Canyon National Park in Fresno County, California. It stands adjacent to Mount Darwin on the Sierra crest, rising 199 metres above the surrounding terrain with a base width of about 0.85 kilometres.

Mount Mendel was named by Theodore S. Solomons and E. C. Bonner of the United States Geological Survey, who gave a series of Sierra Nevada peaks the names of six major exponents of evolutionary theory; Mendel honours the Augustinian friar Gregor Mendel, known as the father of modern genetics. Nearby summits in the group include Mount Darwin, Mount Fiske, Mount Haeckel, Mount Huxley, Mount Spencer, Mount Wallace and Mount Lamarck, and the surrounding area is called the Evolution Region.

The peak is named after Gregor Mendel, the geneticist, as part of a series of summits in the Sierra Nevada dedicated to important figures in evolutionary science. This naming tradition reflects how the region honors scientific discovery and natural philosophy.

Visitors reach the mountain via the Lamarck Col trail starting from the North Lake trailhead, with overnight stays requiring a wilderness permit. The area is exposed and rugged, so visitors should be prepared for rapid weather changes and high-altitude conditions.

Mount Mendel's north face holds two of the hardest ice climbs in the High Sierra: "Ice Nine" (grade IV, class 5+, AI4 or WI5) and "The Mendel Couloir" (grade III, class 5.6, AI2 or WI3). The peak also offers several class 3 and class 4 rock routes. It stands 4,176 metres, about 199 metres above the surrounding terrain.