Cossack, Western Australia (postcode 6720), is a historic ghost town located approximately 1,480 kilometers north of Perth, near the town of Roebourne in the Pilbara region. Established in the 1860s, it was once a thriving port and the first port in the Pilbara, playing a significant role in the region's early pearling and gold rush industries. Today, Cossack is a heritage-listed site, offering visitors a glimpse into its rich history through well-preserved buildings, including the courthouse, schoolhouse, and police station. The town is also known for its picturesque location near the mouth of the Harding River, making it a popular spot for history enthusiasts and photographers. Despite its small population, Cossack is celebrated for its cultural significance and annual events, such as the Cossack Art Awards.
| Postcode: | 6720 |
| State: | WA |
| Coordinates (lat/long): | -20.699288, 117.067614 |
| Federal Electorate: | Durack |