Savonlinna ('New Castle') is a town and a municipality of 32,670 inhabitants in the southeast of Finland, in the heart of the Saimaa lake region.

The most notable attraction in Savonlinna is the Olavinlinna castle, a 15th-century castle built on an island. Near the castle is also the regional museum. Some other attractions include the forest museum Lusto in the village of Punkaharju, and the Kerimäki Church in the neighboring village of Kerimäki, which is the largest wooden church in the world.

Savonlinna hosts the famous annual Savonlinna Opera Festival. The operas are performed on a stage built inside the Olavinlinna castle. The city has also hosted the Mobile Phone Throwing World Championships since 2000.