The Basilica of Our Lady of Licheń is a Roman Catholic church located in the village of Licheń Stary near Konin in the Greater Poland Voivodeship in Poland. It was designed by Barbara Bielecka and built between 1994 and 2004. The construction was funded by pilgrims' donations.
With the nave 120 meters long and 77 meters wide, with a central dome 98 meters high, and with a tower 141.5 metres tall, it is Poland's largest church and one of the largest churches in the World. The church is dedicated to Our Lady of Sorrows, Queen of Poland whose icon, perhaps dating back to the 18th century, is displayed in the basilica's main altar. It is one of Poland's principal pilgrimage sites. Pope John Paul II blessed the Basilica in 1999.