Mount Diablo (disambiguation)

Mount Diablo is a mountain in Contra Costa County, California.

Mount Diablo may also refer to:
 * Devils Peak (Santa Barbara County, California), a peak on Santa Cruz Island
 * Mount Diablo, a peak in Jamaica
 * Mount Diablo, one of several peaks in British Columbia, Canada with a devil-related name; see Devils Couch
 * Mount Diablo, a variant name of Devil Peak (Nevada)