St. Mary's-in-Tuxedo Episcopal Church, otherwise simply referred to as St. Mary's-in-Tuxedo, is an active Episcopal church in Tuxedo, New York, located within the historic village of Tuxedo Park. Constructed in 1888 according to designs by architect William Appleton Potter, the Shingle style community church was the result of efforts to establish a permanent place of worship for Tuxedo's predominantly Episcopalian residents. The church's interior features the work of architect Bertram Goodhue and sculptor Lee Lawrie, which accompanies the many examples of late 19th- and early 20th-century stained glass produced by prominent artists, including Louis Comfort Tiffany and John La Farge. Later additions to the wider campus include designs by Richard Howland Hunt and James Brown Lord.