St. Nicholas Greek Orthodox Church (Manhattan)

The St. Nicholas Greek Orthodox Church, officially the St. Nicholas Greek Orthodox Church and National Shrine, is a church and shrine in the World Trade Center in Lower Manhattan, New York City. It is administered by the Greek Orthodox Archdiocese of America and has been developed by the Port Authority of New York and New Jersey, based upon a design by Spanish architect Santiago Calatrava. The church was consecrated on July 4, 2022.

St. Nicholas replaced the original church of the same name that was destroyed during the September 11 attacks in 2001—the only house of worship, and only building outside the original World Trade Center complex, to be completely destroyed. The new church is located in Liberty Park, overlooking the National September 11 Memorial & Museum. Its architecture draws from Byzantine influences, namely the Church of the Savior and the Hagia Sophia in Istanbul, as well as from the Parthenon in Athens. In addition to serving as a Greek Orthodox parish, St. Nicholas acts as a "House of Prayer for all people" that functions as a national shrine and community center, incorporating a secular bereavement space, social hall, and various educational and interfaith programs.

Initially scheduled to open in 2016, St. Nicholas' rebuilding effort was beset by delays, cost overruns, and claims of financial impropriety. In 2019, the nonprofit Friends of St. Nicholas was founded to help complete the project, which continued under the auspices of the newly elected Archbishop Elpidophoros. The church was partially opened for a memorial service commemorating the 20th anniversary of the September 11 attacks. The church fully opened on December 6, 2022, the Feast of Saint Nicholas.