Hjalmar Emil Fredrik Söderberg (2 July 1869 – 14 October 1941) was a Swedish novelist, short story writer, playwright and journalist.

His works often deal with melancholy and lovelorn characters, and offer a rich portrayal of contemporary Stockholm through the eyes of the flaneur.

Born in Stockholm, Söderberg began his literary course at the Swedish news daily Svenska Dagbladet, age 20.

Six years later his first novel was released, Förvillelser (Delusions, 1895), written from the viewpoint of a young dandy aimlessly idling in the capital, recklessly squandering money and love.

In a frightful tale of vengeance and passion, Söderberg stays true to his detached yet emotionally poignant writing style.

Following his most famous book of short stories Historietter, these include Främlingarna ("The Strangers", 1903), Det mörknar öfver vägen ("It Is Darkening Over the Road", 1907) and Den talangfulla draken ("The Talented Dragon", 1913).

[2] He was a fierce critic of Nazism, and wrote often on the subject in the revered Resistance paper Göteborgs Handels- och Sjöfartstidning.