Carpenter Gothic, also sometimes called Carpenter's Gothic or Rural Gothic, is a North American architectural style-designation for an application of Gothic Revival architectural detailing and picturesque massing applied to wooden structures built by house-carpenters. The abundance of North American timber and the carpenter-built vernacular architectures based upon it made a picturesque improvisation upon Gothic a natural evolution. Carpenter Gothic improvises upon features that were carved in stone in authentic Gothic architecture, whether original or in more scholarly revival styles; however, in the absence of the restraining influence of genuine Gothic structures, the style was freed to improvise and emphasize charm and quaintness rather than fidelity to received models. The genre received its impetus from the publication by Alexander Jackson Davis of Rural Residences and from detailed plans and elevations in publications by Andrew Jackson Downing.

The Old Church, originally known as Calvary Presbyterian Church, is a Carpenter Gothic church located in downtown Portland, Oregon, United States, that is listed on the National Register of Historic Places. Built in 1882, it was designed by Portland architect Warren Heywood Williams. The interior includes stained glass windows made by Portland's Povey Brothers Studio.