Wat San Chao Thong or the "Monastery of the Shrine of Chao Thong" was located on Ayutthaya's city island outside the Historical Park in Pratu Chai sub-district.
There are no traces anymore visible of the monastery above ground level. Historical data about the monastery and its construction are unknown.
A mid-19th century map shows Wat San Jao Thong south of an unidentified monastic structure and west of Wat Jingjok, north of a former brick road being an extension of Chinese Street. On the opposite side of the street stood Wat Kot (วัดกด). The monastery bears on this map the name Wat San Jao Thung (วัดสารเจ้าทุง).