St. Bartholomew's Church, commonly called St. Bart's, is a historic Episcopal parish founded in January 1835, and located on the east side of Park Avenue between 50th and 51st Street in Midtown Manhattan, in New York City.

The second location, built from 1872 to 1876[5] at the southwest corner of Madison Avenue and East 44th Street,[6][7] was designed by James Renwick, the architect of St. Patrick's Cathedral, in the Lombardic style.

The original freely handled and simplified Byzantine Revival design by Bertram Goodhue was called "a jewel in a monumental setting" by Christine Smith in 1988.

[9] Goodhue modified his design in response to the requirement that the old church portal, beloved by the parishioners, be preserved, with its bronze doors, from the Madison Avenue building and re-erected on the new site.

The foundation stone of Goodhue's original design, a vast, unified barrel-vaulted[b] space, without side aisles or chapels and with severely reduced transepts, was laid May 1, 1917[10] and the construction was sufficiently far along for the church to be consecrated in 1918; its design was altered during construction, after Goodhue's sudden, unexpected death in 1924, by his office associates, in partnership as Mayers, Murray and Philips; they were engaged in erecting the community house, continuing with the same materials, subtly variegated salmon and cream-colored bricks and creamy Indiana limestone; they designed the terrace that still provides the equivalent of a small square, surrounded by the cliff-like facades of Midtown commercial structures; in summer, supplied with umbrellas and tables, it becomes the outside dining area for the restaurant, Inside Park.

[c] Completed in 1930, the church contains stained-glass windows and mosaics by Hildreth Meiere, and a marble baptismal font by the Danish follower of Canova, Bertel Thorvaldsen.

Beginning in 1981, St. Bartholomew's found itself the subject of a much-publicized case concerning air rights in the highly-competitive New York real estate market clashing with historical preservation.

[14] One of the church's former choir-directors was the famous conductor Leopold Stokowski, who was brought from the United Kingdom by St. Bart's; he was followed by the organist-choirmaster David McKinley Williams.