Crystal Peak is a high mountain summit in the Tenmile Range of the Rocky Mountains of North America. The 13,859-foot (4,224 m) thirteener is in White River National Forest, 5.9 miles (9.5 km) southwest (bearing 220°) of the Town of Breckenridge in Summit County, Colorado, United States.

Most climbers approach Crystal Peak from the east, in particular via the Crystal Lakes basin. This approach, a pleasant hike, follows jeep trails until treeline and Lower Crystal Lake. Four-wheel-drive vehicles can generally make it this far. A trail on the lake's north side takes climbers to Upper Crystal Lake, where gentle scree slopes provide access to the ridges north of the summit.

According to the Köppen climate classification system, the mountain is located in an alpine subarctic climate zone with cold, snowy winters, and cool to warm summers. Due to its altitude, it receives precipitation all year, as snow in winter, and as thunderstorms in summer, with a dry period in late spring.

• List of Colorado mountain ranges
• List of Colorado mountain summits
  • List of Colorado fourteeners
  • List of Colorado 4000 meter prominent summits
  • List of the most prominent summits of Colorado
• List of Colorado county high points