This is a list of islands in the Baltic Sea.

Listed by Size

1. Gotland (2,994 km², belonging to Sweden)
2. Saaremaa (2,992 km², belonging to Estonia)
3. Öland (1342 km², belonging to Sweden)
4. Hiiumaa (965 km², belonging to Estonia)
5. Rügen (935 km², belonging to Germany)
6. Bornholm (588 km², belonging to Denmark)
7. Usedom (445 km², split between Poland and Germany)
8. Wolin (265 km², belonging to Poland)
9. Kotlin (?? km², belonging to Russia)

Listed by population

1. Usedom (76,500 people, split between Poland and Germany)
2. Rügen (73,000 people, belonging to Germany)
3. Gotland (57,381 people, belonging to Sweden)
4. Bornholm (44,100 people, belonging to Denmark)
5. Saaremaa (40,312 people, belonging to Estonia)
6. Öland (23,000 people, belonging to Sweden)
7. Wolin (17,000 people, belonging to Poland)
8. Hiiumaa (10,000 people, belonging to Estonia)
9. Kotlin (??,000 people, belonging to Russia)

The Åland Islands (belonging to Finland) lie at the entrance to the Gulf of Bothnia marking the northern border of the Baltic Sea proper.

The largest Danish islands Zealand (7,000km² 2,200,000 people) and Funen (2,984km² 400,000 people) lie between the Baltic Sea and the Kattegat.

See also

• List of islands of Sweden
• List of islands of Estonia
• List of islands of Finland
• List of islands of Germany
• List of islands of Poland
• List of islands of Denmark
• List of islands