Rafferty Peak is an 11,110-foot-elevation (3,386 meter) mountain summit located in Yosemite National Park, in California, United States.

Topographic relief is significant as the summit rises 1,500 feet (460 meters) above Nelson Lake in one mile.

This geographical feature was named in 1895 by Lieutenant Nathaniel Fish McClure who prepared a map of Yosemite National Park for use by troops.

The name honors Captain Ogden Rafferty (1860–1922), Medical Corps, United States Army, who accompanied McClure on a patrol of Yosemite Valley.

As fronts approach, they are forced upward by the peaks (orographic lift), causing them to drop their moisture in the form of rain or snowfall onto the range.