Deacon John Bailey House is a residential building in Portland, Maine, United States. The home, which is located at 1235 Congress Street, was built between 1730 and 1756, when the city was part of the Province of Massachusetts Bay. Greater Portland Landmarks, a preservation group, calls it "one of the most important Pre-Revolutionary War-era houses in the city." It is believed that the bricks for the home's floor and hearth were fired on-site.