The Bayon is a richly decorated Khmer temple related to buddhism at Angkor in Cambodia. Built in the late 12th or early 13th century as the state temple of the King Jayavarman VII, the Bayon stands at the centre of Jayavarman's capital, Angkor Thom.

The Bayon's most distinctive feature is the multitude of serene and smiling stone faces on the many towers which jut out from the upper terrace and cluster around its central peak.

These faces are of mahayan bodhisatva avlokiteswara and often misunderstood as Hindu creator god Brahma.

The main conservatory body, the Japanese Government Team for the Safeguarding of Angkor (the JSA) has described the temple as "the most striking expression of the baroque style" of Khmer architecture, as contrasted with the classical style of Angkor Wat.