The Church of St. Barnabas is an Episcopal house of worship in Irvington, New York, United States. It is a stone Gothic Revival structure whose oldest sections date to the mid-19th century, with several expansions undertaken since then. The reputedly haunted church complex was added to the National Register of Historic Places in 2000.
At first the church was a small chapel modeled on St Martin's Church in Canterbury, the oldest church in continuous use in England. It was part of a school, but after six years that was abandoned and it became a parish church. An expansion into the present structure a decade later was designed by the firm of architect James Renwick, Jr.. Among its members have been Washington Irving, Philip Schuyler and Jay Gould, all of whom lived in the area.
Since its construction it has been expanded several times. Most additions have been either sympathetic to the original architecture or unobtrusive. Its congregation plays a major role in the Irvington community, sponsoring several local programs including the village's only day care center.
There have been claims that the ghosts of some previous occupants haunt the building. One occupant matched a photo of one former member of a 19th-century pastor's family to a woman she frequently saw sitting in a rocking chair, knitting. In 2000, several workers installing a new organ left the church in rush after seeing an apparition in the sanctuary. It was believed by some members of the church to be the ghost of William McVickar.