Wat Kamphaeng, or the Monastery of the Wall, was located off the city island in the southeastern area of Ayutthaya, in the Khlong Suan Phlu Sub-district, east of the railway from Bangkok to the north.

It is part of a cluster of three monasteries, the other two being Wat Ko Noi and Wat Sangkhawat, situated on the west bank of Khlong Ban Krot, running parallel with the present Chao Phraya River.

In situ remains only a brick mound. A Bodhi tree or "Ficus Reliogiosa" stands on the site. Wat Kamphaeng is found on a Fine Arts Department map drafted in 1993 and 2007 CE.

Its historical background and period of construction are unknown.

The site is in geographical coordinates: 14° 19' 47.33" N, 100° 35' 9.26" E.

There are two other sites with the same name: one in the northern area along Khlong Sra Bua and the other on the city island in the southeast.

(View of the site of Wat Kamphaeng)