| Bueng Krachap | |
|---|---|
| บึงกระจับ | |
 Northern lakeshore in the early evening | |
  Bueng Krachap | |
| Location | Ban Pong District |
| Coordinates | 13°48′06.8″N 99°55′30.6″E / 13.801889°N 99.925167°E |
| Basin countries | Thailand |
| Max. length | 0.9 kilometers (0.56 mi) |
| Max. width | 0.6 kilometers (0.37 mi) |
| Surface area | 0.4 square kilometers (0.15 sq mi) |
| Average depth | 1.1 meters (3 ft 7 in) |
| Max. depth | 2.5 meters (8 ft 2 in) |
| Residence time | UTC+7 |
| Surface elevation | 19 meters (62 ft) |
| Settlements | Ban Pong |
Bueng Krachap (Thai: บึงกระจับ, pronounced [bɯ̄ŋ krā.t͡ɕàp]) is a freshwater lake in Thailand, situated in the area of Nong Kop Subdistrict, Ban Pong District, Ratchaburi Province, regarded as the oldest and largest lake in the western region of Thailand.
Bueng Krachap is not a natural waterbody, it is an artificial lake that was excavated in World War II era, with a total area of 251 rai (40.2 ha; 99 acres).
Its name "Bueng Krachap", means "water caltrop lake" ("krachap" in Thai). Formerly there were such plants in this area, but nowadays they have disappeared.