Boloria improba, the dingy fritillary, is a butterfly of the family Nymphalidae.

In Europe it is only found in small parts of Scandinavia, more specifically the border region between Norway, Sweden and Finland.

[1] It is found in alpine or tundra habitats.

[2] The larvae probably feed on Polygonum viviparum in Europe.

In North America the food plants are Salix arctica and Salix reticulata nivalis.