Slawa Duldig née Horowitz (28 November 1901– 16 August 1975) was an inventor, artist, interior designer, and teacher. In 1928, as Slawa Horowitz, she created a design for an improved compact folding umbrella, which she patented in 1929. Slawa was the wife of the Polish-Austrian-Australian modernist sculptor Karl (Karol) Duldig. She was also the mother of Eva de Jong-Duldig, a champion Australian tennis player who played in Wimbledon, the French Championships, the Australian Open, and at the Maccabiah Games in Israel where she won two gold medals, and is founder of the present-day Duldig Studio, an artists’ house museum in Melbourne, Australia.