Jay Dayton Smith House, Mission Revival residence in Las Vegas, United States.

The Jay Dayton Smith House is a residential building in Las Vegas that displays Spanish mission architecture elements, including arched windows and detailed tilework on its exterior and throughout interior spaces. Located on South 6th Street, the structure now serves as office space while retaining its original architectural features.

The house was built in 1932 during Las Vegas's early development years and represents one of the first examples of mission architecture in the city. In 1987 it was listed on the National Register of Historic Places, officially recognizing its historical importance.

The residence reflects architectural choices that took root early in Las Vegas, showing how Spanish mission design became a preferred style among residents. This building approach adapted to desert conditions and shaped how the young city looked.

The house stands within the Las Vegas High School Neighborhood Historic District, at the coordinates 36.16226, -115.14410 in Las Vegas, Nevada. It is used as an office, so the interior is not open to visitors; the exterior can be seen from the street. The National Register listing file of February 20, 1987 is the reference for its designation.

The house sits inside the Las Vegas High School Neighborhood Historic District, a residential area tied to the city's early growth, and it was added to the National Register of Historic Places on February 20, 1987. It is now used as an office.