Saint Mary Catholic Church

The Church of St. Mary is a parish church in the Archdiocese of New York, located at 438–440 Grand Street between Pitt and Attorney Streets on the Lower East Side of Manhattan, New York City. Established in 1826 to serve Irish immigrants living in the neighborhood, it is the third oldest Catholic parish in New York. St. Mary's will celebrate its bicentennial as a parish in 2026. The church itself was built in 1832–33, and was then enlarged and had its facade replaced in 1871 by the prolific church architect Patrick Charles Keely. The original portion is the second-oldest Catholic structure in the city, after St. Patrick's Old Cathedral, which was built in 1815.