Anni Viktoria Blomqvist (7 October 1909 – 26 June 1990), née Karlsson, was a Finland-Swedish novelist.

[1] Blomqvist was born in Vårdö, Åland, Grand Duchy of Finland, Russian Empire, the first of ten children of fisherman Viktor Karlsson and wife Anna.

Living with the family was Anni's maternal grandmother, who would serve as the basis for the protagonist in the Anna Beata trilogy of books.

After the last novel in the series, Vägen från Stormskäret, was published in 1973, she began collaborating with Stig Jaatinen of Helsinki University on a study of the people and community on the Åland Islands.

Anni Blomqvist is featured on a stamp issued on 21 March 2009 by the postal authority of Åland.

The stamp, by the artist Juha Pykäläinen, is a portrait of Blomqvist next to a depiction of a traditional Åland house, the motif coming from her Stormskärs-Maja novels.