| Type: | town |
| Cooljarloo | |
| State: | wa |
| Lga: | Shire of Dandaragan |
| Local Map: | yes |
| Zoom: | 9 |
| Coordinates: | -30.65°N 137°W |
Cooljarloo, also known as Cooljarloo Well, is a location in Western Australia. It is located at 30°39'S 115°22'E, around 170 kilometres north of Perth, and about ten kilometres north of Cataby. It is mostly known as the location of a major mineral sands deposit mined by the Tiwest Joint Venture.