Margarethe Hormuth-Kallmorgen (22 August 1857–7 July 1916) was a German painter.

[2] in 1882 she married the landscape painter Friedrich Kallmorgen with whom she had two children.

The couple belonged to the Grötzinger Art Colony.

[1] Hormuth-Kallmorgen exhibited her work at the Palace of Fine Arts and The Woman's Building at the 1893 World's Columbian Exposition in Chicago, Illinois.

[2] Hormuth-Kallmorgen died on 7 July 1916 in Heidelberg[1] In 1975 Grötzingen designated the Margarethe Hormuth Street in the Karlsruhe's district.