Is located in Tambon Rai Khing 32 kilometers from Bangkok. It is a civilian monastery built in 1791. Somdej Phra Phutth Chan named this temple after the district.

When construction was completed, the Buddha image was brought from Wat Sala Poon and enshrined here, later the locals named the image Luang Pho Wat Rai Khing. The Buddha image is in the attitude of Buddha Subduing Mara. The Buddha image is of Chiang Saen style and is assumed to have been build by Lanna Thai and Lan Chang craftsmen. According to legend, this Buddha image was found floating in the river, so the town people lifted the Buddha image out of the water and enshrined the image at Wat Sala Poon.

The temple is well known among Thais, faithful Buddhist frequently pay a visit to Wat Rai Khing to pay homage to the sacred Buddha image.

Ecery Saturdays and Sundays, food and fruits are sold in front of the temple. This temple is also renowned for its natural fish sanctuary, a habitat of hundreds of thousands of Sawai fish. Visitors can buy bread here to feed the fish.