The West Baray (Khmer: បារាយណ៍ទឹកថ្លា, Baray Teuk Thla) is a baron or reservoir, in Angkor, Cambodia, oriented to the east and west, located west of the walled city, Angkor Thom. Rectangular and measuring approximately 7.8 by 2.1 kilometers, the West Baray is the largest baron of Angkor. Its waters are contained in high earth embankments. In the center of the baray is the West Mebon, a Hindu temple built on an artificial island.

The construction of the bar probably began in the 11th century during the reign of King Suryavarman I [1]: 95 [2]: 371 and ended later under King Udayadityavarman II.

The Angkorian engineers who created the West Baray seem to have built-in previous construction sites. The east dike, for example, seems to be largely a section of a dike that enclosed the capital of King Yasovarman, who had the Phnom Bakheng temple in the center. Elsewhere, Barreto destroyed or submerged previous human-made sites. The South Dike, for example, partially buried a brick pyramid temple, Ak Yum. And the baron's western floor seems to have been inhabited - archaeological work has found wall bases, steps, and ceramic coffins there. An inscription trail discovered in the area, dating to 713 BC, offers more evidence of previous settlement by defining rice fields that were offered to a queen Jayadevi.

Early French experts believed that West Baray had functioned as a vast water tank that fed irrigation canals in dry times, allowing for several rice crops each year. Many later studies, however, theorize that the baré mainly had symbolic functions, serving as a vast terrestrial description of the Hindu Sea of ​​Creation, with the temple of West Mebon in the center.

In modern times, an irrigation block was built on the south dyke of the baray, raising the water level and allowing the water supply in the fields to the south. Today, the baré retains water at its western end all year. In the rainy season, water advances to the eastern dike.

With clear and still waters, the bahrain today is a popular place for swimming and boating by the locals. Eventually, it served as a landing place for seaplanes.