Quoiba is a rural residential locality in the local government area (LGA) of Devonport in the North-west and west LGA region of Tasmania, about 5 kilometres (3.1 mi) south of the town of Devonport.

It is a residential and industrial suburb located on the south western side of the Mersey River.

The suburb contains an industrial area with cardboard manufacturers, a cannery, vegetable packaging site and livestock sale yards.

Kelcey Tier Green Belt lookout has views over Devonport.

The waters of the Mersey River estuary form part of the eastern boundary.