Erotikon is a 1920 Swedish romantic comedy film directed by Mauritz Stiller, starring Tora Teje, Karin Molander, Anders de Wahl and Lars Hanson.

The story revolves around an entomology professor obsessed with the sexual life of bugs, and his easygoing wife who is courted by two suitors.

Leo Charpentier, entomology professor, is interested in polygamy among beetles but hasn't noticed that his wife Irene is having an affair with his best friend, sculptor Preben Wells, and flirting with an aviator, Baron Felix.

To atone for his mistake, he tries to return Irene to Leo – but when he finds her, and explains that the woman buying the fur was his model, it's they who make up.

The extensive ballet scene in the film was choreographed by Carina Ari, noted Swedish dancer.