Jadwiga Joanna Orska (8 March 1923 – 28 January 2004) was a Polish geologist, petrographer, and specialist in the geology of chemical raw materials deposits, particularly salts. She was the co-discoverer of a deposit of polyhalite salts in the area of the Bay of Puck in the southern Baltic Sea, off the shores of Gdańsk Pomerania, Poland.
