'lowland castle') is a Khmer Hindu Temple in Prakhon Chai District, Buriram Province, Thailand.

It is primarily in the Khleang and Baphuon styles, which dates its primary phases of construction to the late-10th and early-11th centuries.

The ponds between the enclosures are an unusual feature of the temple, as is the central sanctuary, which is not elevated and has its towers arranged in rows of three and two.

A small probably contemporaneous with the temple, lay to the east, while a later, larger baray survives further north between Muang Tam and Phanom Rung.

Media related to Prasat Muang Tam at Wikimedia Commons