The Ostrobothnian Museum is the main regional museum of Vaasa, combining cultural history, art, and natural science under one roof — unusual for a Finnish provincial museum of its era. The collection covers the history of Ostrobothnia from prehistoric times through the 20th century, with particular attention to the region's maritime past, its role in the 1918 Civil War, and the distinctive Finnish-Swedish bilingual culture of the west coast.
The art section holds a solid collection of Finnish and Swedish paintings, with works from the late 19th and early 20th centuries. The natural history wing is the kind of comprehensive regional collection that used to be built with genuine scientific ambition — minerals, birds, insects, fish from the Gulf of Bothnia — and it still rewards looking. The museum is located in a handsome neoclassical building near the city centre, a short walk from the market square.