Hagia Sophia Orthodox church in Warsaw, Eastern Orthodox church in Ursynów district, Warsaw, Poland.

Hagia Sophia is an Eastern Orthodox parish church at Puławska 568 in Warsaw's Ursynów district, modeled on Constantinople's Hagia Sophia. It measures 36.9 m long, 30 m wide and 21.6 m high, with a 16.2 m copper-covered central dome topped by an equilateral cross. The facade is clad in Szydłowiec sandstone, and the walls carry mosaics and frescoes.

Preparatory work began in 2015, and on 5 December 2015 Patriarch Bartholomew of Constantinople consecrated the foundation stone. The first Divine Liturgy was celebrated in the unfinished church on 19 May 2018, the same day the cross was placed on the main dome. The church was consecrated on 14 May 2023 by Metropolitan Sawa, and on 16 September 2025 it hosted the canonization of the Katyn martyrs.

This church serves as a central gathering place for Orthodox believers in Warsaw, where traditional liturgies and ceremonies connect the community to their faith. The interior follows Orthodox traditions in how it is arranged and decorated, reflecting the spiritual values of those who worship here.

The church is located in the southern part of Warsaw and is most easily accessed by public transportation, particularly the metro line M1 to Wilanowska station. From there, visitors can board buses that bring them conveniently to the location.

The church is a votive offering for 25 years of democratic change in Poland and the 90th anniversary of the autocephaly of the Polish Orthodox Church. Its design, by Andrzej Markowski, references the Hagia Sophia in Constantinople, and the central copper dome, 16.2 m across, carries an equal-armed Byzantine cross.