Wat Intharam Worawihan, is a royal temple of the Worawihan type and was built during the Ayutthaya period. The temple has been called Wat Bang Yi Ruea Nok or Wat Bang Yi Ruea Thai and Wat Suan Plu (Wat Suan Phlu).
The monastery was restored entirely by King Taksin the Great (1767-1782), who afterwards granted it the status of a royal temple. It was his favorite temple where he came to stay overnight to meditate and observe religious precepts. At the time the temple was considered to be the largest and most prosperous in the area. In 1782 the temple was used to house the royal creamatorium of the late King Taksin the Great. It retained its status as a royal temple throughout the reign of King Rama 1 (1782-1809), with three high ranking monks governing the monastery. During the reign of King Rama III (1824-1851), Phraya Srisahathep (Thong Pheng) restored it once again and asked the king to grant it the status of a royal temple. The request was granted, but to a lower status than before. It was then named Wat Intharam. Information is from a historical marker at the temple.