The Spaniards Bay Heritage House is the Mark Gosse Residence, also known as The Spaniards "Room" Heritage Home, a registered heritage structure built around 1901 in Spaniard's Bay, Newfoundland and Labrador. It is an example of merchant-style architecture, with notable features like a mansard roof, and today operates as a bed and breakfast offering a blend of historic charm and modern amenities. The property's design reflects the wealth of the Gosse family, and it is now recognized as both a registered heritage structure and a National Historic Site.