Józef Simmler (March 14, 1823 - March 1, 1868) was a Polish painter known for his classical style and his Polish subjects.
Perhaps his most famous work is "Death of Barbara Radziwillowna" ("Śmierć Barbary Radziwiłłówny"), an oil on canvas work completed in 1860. It now hangs in the National Museum, Warsaw. His daughter's brother-in-law was Eduard Strasburger, the famous Polish-German botanist. One of Simmler's grandsons was Henryk Leon Strasburger, a Polish delegate to the League of Nations