This is the list of cathedrals in Poland sorted by denomination.
Roman Catholic
Cathedrals of the Roman Catholic Church in Poland: Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Białystok Cathedral of St. Nicholas in Bielsko-Biała Co-Cathedral of the Nativity of the Blessed Virgin Mary in Żywiec Cathedral of St. Martin and St. Nicholas in Bydgoszcz Basilica of Our Lady of Licheń in Licheń Cathedral Basilica of the Holy Family in Częstochowa Cathedral of the Most Holy Trinity in Drohiczyn Co-Cathedral of the Immaculate Heart of Mary in Sokołów Podlaski Cathedral of St. Nicholas in Elbląg Co-Cathedral of St. John the Evangelist in Kwidzyn Co-Cathedral of St. Adalbert in Prabuty Cathedral of St. Adalbert in Ełk Co-Cathedral of Mary Mother of the Church in Gołdap Co-Cathedral of St. Alexander in Suwałki Cathedral Basilica of the Most Holy Trinity (Assumption) in Oliwa Co-Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Gdańsk Cathedral of Sts. Peter and Paul in Gliwice Cathedral Basilica of the Assumption of the Blessed Virgin Mary and St. Adalbert in Gniezno Cathedral of St. Nicholas in Kalisz Co-Cathedral of St. Stanislaus in Ostrów Wielkopolski Cathedral of Christ the King in Katowice Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Kielce Cathedral of the Immaculate Conception of the Blessed Virgin Mary in Koszalin Co-Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Kołobrzeg Cathedral Basilica of St. Stanislaus and St. Wenceslaus in Kraków Cathedral of Sts. Peter and Paul in Legnica Cathedral Basilica of St. Stanislaus Kostka in Łódź Cathedral of St. Michael the Archangel in Łomża Cathedral Basilica of the Assumption of the Blessed Virgin Mary and St. Nicholas in Łowicz Cathedral of St. John the Baptist in Lublin Cathedral Basilica of the Holy Cross in Opole Cathedral of Queen of Poland in Warszawa Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Pelplin Cathedral Basilica of the Blessed Virgin mary of Masovia in Płock Cathedral Basilica of Sts. Peter and Paul in Poznań Cathedral Basilica of the Assumption of the Blessed Virgin Mary and St. John the Baptist in Przemyśl Cathedral of St. John the Baptist in Przemyśl (Ukrainian Rite) Cathedral of the Protection of the Blessed Virgin Mary in Radom Cathedral of the Sacred Heart of Jesus in Rzeszów Cathedral Basilica of the Nativity of the Blessed Virgin Mary in Sandomierz Co-Cathedral Basilica of Mary Queen of Poland in Stalowa Wola Cathedral of the Immaculate Conception of the Blessed Virgin Mary in Siedlce Cathedral Basilica of the Assumption of the Blessed Virgin Mary in Sosnowiec Cathedral of St. Stanislaus and St. Wenceslaus in Świdnica Cathedral Basilica of St. James the Apostle in Szczecin Co-Cathedral of St. John the Baptist in Kamień Pomorski Cathedral Basilica of the Nativity of the Blessed Virgin Mary in Tarnów Cathedral Basilica of St. John the Baptist in Toruń Co-Cathedral Basilica of the Most Holy Trinity in Chełmża Cathedral Basilica of Our Lady of the Assumption and St. Andrew in Frombork Co-Cathedral Basilica of St. James in Olsztyn Cathedral Basilica of St. John the Baptist in Warszawa Cathedral Basilica of St. Michael the Archangel and St. Florian in Warszawa Co-Cathedral of Our Lady of Victory in Warszawa Cathedral of the Assumption of the Blessed Virgin Mary in Włocławek Cathedral Basilica of St. John the Baptist in Wrocław Cathedral of St. Vincent and St. James in Wrocław (Ukrainian Rite) Co-Cathedral of St. Bartholomew and St. Mary Protection in Gdańsk (Ukrainian Rite) Cathedral of the Resurrection and St. Thomas the Apostle in Zamość Co-Cathedral Shrine of St. Stanislaus in Lubaczów Cathedral of the Assumption of the Blessed Virgin Mary in Gorzów Wielkopolski Co-Cathedral of St. Hedwig in Zielona Góra
Eastern Orthodox
Cathedrals of the Polish Orthodox Church:
Cathedral of St. Nicholas in Białystok
Cathedral of St. Alexander Nevsky in Łódź
Cathedral of the Transfiguration in Lublin
Cathedral of the Holy Trinity in Sanok
Cathedral of St. Mary Magdalene in Warsaw
Provisional Field Cathedral of St. Nicholas the Wonderworker in Warsaw
Cathedral of the Nativity of the Blessed Virgin Mary in Wrocław
Polish Catholic Church
Cathedrals of the Polish Catholic Church: Cathedral of Virgin Mary the Queen of the Apostles in Częstochowa Cathedral of the Holy Spirit in Warsaw Cathedral of St. Mary Magdalene in Wrocław
Mariavite Church
Cathedral of the Mariavite Church: Temple of Mercy and Charity in Płock