| Date: | 10th century CE |
| Style: | Bakheng |
| King: | Yashovarman I (reign 889 – 915 CE) |
| Cult: | Hindu (Shaivite) |
Little is known about Prasat Bei (Khmer: ប្រាសាទបី, meaning 'three towers') except that it was never completed.
The temple consists of three brick towers on a laterite base with a single staircase facing east. The central tower contained a linga. The south and central lintels feature Indra on Airavata. The lintel on the north tower, where only a general layout has been outlined, shows us that carvers executed their work on-site.
Prasat Bei is located a short distance to the west of Bay Ka-ek Temple, near Angkor Thom South Gate.
