Mount Hermon is an unincorporated community and census-designated place (CDP) in Santa Cruz County, California.
Mount Hermon, known as "Tuxedo Junction" prior to 1906, was a stop on the South Coast Pacific Railroad from Alameda to Santa Cruz. Hotel Tuxedo was on the property; the hotel was purchased and renamed the Zayante Inn on April 14, 1906, by a group which later became the Mount Hermon Association, Inc. Five ladies of the group were entrusted with the selection of a new name for the area, and they choose that of the peak in the Holy Land. The land was to be used as a Christian retreat center, whose dedication day, known as "The Great Day", was July 22, 1906; the event was held at the Zayante Inn with 1400 people in attendance. Speaking at the dedication was Dr. Reuben A. Torrey, President of the Moody Bible Institute in Chicago, Illinois.