Black River is the capital of St. Elizabeth Parish, in southwestern Jamaica. It developed as a port around the mouth of the river of the same name. Today the city is a centre of environmental tourism and a gateway to the Treasure Beach resort area.

The Black River is one of the longest rivers in Jamaica. At a length of 53.4 km (33.2 mi),[2] it was believed to be the longest until it was discovered that the Rio Minho was 92.8 km long.[3] Its name refers to the darkness of the river bed caused by thick layers of decomposing vegetation. Over 100 species of birds have been recorded in the Black River morass