Khao Sam Muk (), is a 45 m (147.64 ft) high hill in Chonburi Province, Thailand. It is in Chonburi city on Bangkok Bay between Ang Sila and Bang Saen Beach. There is a Chinese shrine of Mazu on the hilltop which affords views of the surrounding landscape, including Bang Saen Beach, and there is another shrine at the foot of the escarpment. This shrine is a Thai shrine built according to the legend of this hill.