| Stefan Adam Zamoyski | |
| Noble Family: | Zamoyski |
| Coa: | Jelita |
| Father: | Władysław Zdzisław Zamoyski |
| Mother: | Maria Mężyńska |
| Spouse: | Elżbieta Czartoryska |
| Issue: | Maria Helena Zamoyska Zdzislaw Klemens Zamoyski |
| Birth Date: | 17 February 1904 |
| Birth Place: | Racewo, Russian Empire (now Poland) |
| Death Place: | San Francisco, United States |
Count Stefan Adam Zamoyski (17 February 1904 – 27 October 1976) was a Polish nobleman, landowner and a magnate.
Born into an old and wealthy Zamoyski family, Stefan Adam was the eldest son of Count Wladyslaw Zamoyski (1873-1944) and his wife, Marie Mezynska (1878-1956).[1] He had a degree of Doctor of Law. He was owner of estates in Wysock. Lt.-Col. Count Stefan Zamoyski served as an aide-de-camp to Polish Prime Minister-in-exile Wladislaw Sikorski in London. In December 1940, Lt.-Col. Zamoyski wrote to the head of RAF Bomber Command, requesting that the German concentration camp Auschwitz be bombed to allow the Polish political prisoners there at the time to escape; the RAF declined to act. He was awarded with the Virtuti Militari Order.
Following World War II, Count Zamoyski remained in Britain. He was working at the Jockey Club when he came into contact with Captain Kazimierz Bobinski and working together, they finished Bobinski's work in compiling the Bobinski-Zamoyski Family Tables of Racehorses, published in 1954.
On 26 June 1929 in Gołuchów, he married Princess Elżbieta Czartoryska (1905-1989), second daughter of Prince Adam Ludwik Czartoryski and his wife, Countess Maria Ludwika Krasińska. They have three children: