| Lake Disappointment | |
|---|---|
| Kumpupintil (Martu) | |
 Landsat image; screen capture from NASA World Wind | |
 | |
  Lake Disappointment | |
| Location | Western Australia |
| Coordinates | 23°30′S 122°50′E / 23.500°S 122.833°E |
| Lake type | Endorheic salt lake |
| Basin countries | Australia |
| Max. length | 160 km (99 mi) |
| Surface area | 330 km2 (130 sq mi) |
| Surface elevation | 325 metres (1,066 ft) |
 | |
Kumpupintil Lake (pronounced goom-bu-pin-dil), formerly known as Lake Disappointment, is an endorheic salt lake located in the Little Sandy Desert, east of the Pilbara region of Western Australia.