Blåbärssoppa (Swedish, blueberry or more accurately bilberry soup, Finnish: mustikkakeitto [ˈmustikːɑˌkei̯tːo], Icelandic: bláberjasúpa) is a Nordic fruit soup made from bilberries, which can be served cold or hot.

In the United States, Swedish blåbärssoppa is imported and sold under the trade name Blåbär.

The Swedish word for bilberry, blåbär, literally means 'blueberry', but the beverage is not made from the North American blueberry (section Cyanococcus of the genus Vaccinium), but from the related but distinct bilberry, Vaccinium myrtillus, which grows in the wild throughout Scandinavia and other parts of Europe.

Blueberry soup is traditionally served to the participants at the ski marathon Vasaloppet, as it is rich in energy.

Bilberries have traditionally been used to combat mild gastrointestinal ailments,[2] and in Sweden and Finland, blueberry soup is often considered suitable food for people with an upset stomach, also because it is energy-rich.