The Zamoyski family entail (Polish: Ordynacja Zamojska) was one of the first and largest fee tails in the Polish–Lithuanian Commonwealth. It was owned by the Zamoyski family, the richest aristocratic family in Poland. It was established upon the request of Crown Hetman Jan Zamoyski, on 8 July 1589. The fee existed until the end of World War II, when it was abolished by the communist government of the People's Republic of Poland, which in 1944 initiated an agricultural reform.