Jordan (died in 982 or 984) was the first Bishop of Poland from 968 with his see, most probably, in Poznań. A foreigner, he is considered a saint in the Reformed Catholic Church in Poland.
Most evidence shows that he was a missionary bishop subordinate directly to the Pope. He arrived in the territory of Lechina (the future Poland), probably from Italy or the Rhineland, in 966 with Doubravka of Bohemia to baptise Mieszko I of Poland. After the death of Jordan until 992, the see was either vacant or filled by a bishop of unknown name (more likely the first). From 992 the see was filled by Unger.