John Welch was an architect and builder of Brooklyn, New York who designed numerous churches.
He was also one of the founders of American Institute of Architects.
A number of his works are listed on the National Register of Historic Places.
His St. Luke's Protestant Episcopal Church in Brooklyn, designed and built by Welch during 1888-89, has been said to be "among the largest and finest of nineteenth-century ecclesiastical structures in New York City".
Works include: