Mount Arayat is an extinct volcano on Luzon Island, Philippines, rising to a height of 1026 m (3366 ft) AGL. There is no recorded eruption of the volcano, and its last activity probably dates to the Holocene era. One academic report indicates activity within the last 2000 years, but it is believed that this refers to the volcano's thermal activity.

The volcano is located in a flat agricultural region at 15°12'N 120°45'E. Ten miles to the west of Mount Arayat is Angeles City and the former Clark Air Base. Mount Pinatubo is located a further ten miles west.

It is considered a mystical mountain, the legendary home of the fairy godmother Mariang Sinukuan, and was once considered to contain a wealth of fruit. There has recently been strong resistance against a proposal to place radio antennas atop the peak.