| Crystal Peak | |
| Elevation Ft: | 3592 |
| Elevation Ref: | [1] |
| Location: | Santa Clara County, California, United States |
| Range: | Santa Cruz Mountains |
| Map: | USA California#USA |
| Map Size: | 280 |
| Coordinates: | 37.1133°N -121.8358°W |
| Coordinates Ref: | [2] |
| Topo: | USGS Loma Prieta |
Crystal Peak is a prominent peak in the Santa Cruz Mountains in southwest Santa Clara County, California, United States. The landmark lies 10miles west of Morgan Hill, and approximately 0.5miles northeast of Loma Prieta. It is the second highest peak in the Santa Cruz Mountains. The headwaters of Llagas Creek originate on the eastern flank of the peak, and flow southward before merging with the Pajaro River at the San Benito County line.
The summit was named for the radio communications facility on the peak and to commemorate early crystal radio development.