Trinity Church is a historic Episcopal church located at Constantia in Oswego County, New York. It is a small frame vernacular Federal style structure completed in 1831–1834. The last record of it having been painted is 1851. Also on the property is a cemetery with most gravestones dating to the mid 19th century. William H. Baker (1827-1911) is interred in the cemetery. It was listed on the National Register of Historic Places in 1982.