Paljassaare (Estonian for 'bare island') is the name for both the Paljassaare Peninsula in Tallinn Bay and a subdistrict () in the district of Põhja-Tallinn () in the city of Tallinn, the capital of Estonia. The subdistrict is located on the peninsula.
Paljassaare has a population of 583 ().
Paljassaare Harbour is a cargo port that primarily specialises in handling mixed cargo, coal, and oil products, as well as timber and perishables. The harbour is also used by the neighbouring refinery for cooking oil shipments.
The harbour has an area of 43.6 ha and has 11 berths.
Vessels enter and leave the harbour through a canal, which is 800 metres long, 90 to 150 metres wide, and 9.0 metres deep.