Mountain of the Sun is a 6,722-foot (2,049 m) elevation Navajo Sandstone summit located in Zion National Park, in Washington County of southwest Utah, United States. Mountain of the Sun is situated immediately east of Court of the Patriarchs, and south of Zion Lodge, towering 2,500 feet (760 meters) above the lodge and the floor of Zion Canyon. It is set on the east side of the North Fork of the Virgin River which drains precipitation runoff from this mountain. Its neighbors include The Sentinel, Mount Spry, The East Temple, and Mount Moroni. This feature's name was officially adopted in 1934 by the U.S. Board on Geographic Names.

Spring and fall are the most favorable seasons to visit Mountain of the Sun. According to the Köppen climate classification system, it is located in a Cold semi-arid climate zone, which is defined by the coldest month having an average mean temperature below 32 °F (0 °C), and at least 50% of the total annual precipitation being received during the spring and summer. This desert climate receives less than 10 inches (250 millimeters) of annual rainfall, and snowfall is generally light during the winter.

• List of mountains in Utah
• Geology of the Zion and Kolob canyons area
• Colorado Plateau

• Zion National Park National Park Service
• Mountain of the Sun rock climbing: mountainproject.com
• Hiking information: Zionnational-park.com