The Ninth Avenue Historic District is a National Register of Historic Places (NRHP) listed historic district located along and around Ninth Avenue in the Cliff/Cannon neighborhood of Spokane, Washington. It stretches from Monroe Street on the east to Chestnut Street on the west, running the length of Ninth Avenue and extending to include portions of Eighth, 10th and 11th Avenues, mostly in the western half of the district.
A residential area, the district was built to house many of early-Spokane's elite residents in grand Queen Anne, Colonial Revival, Classical Revival, American Foursquare and Tudor Revival homes, along with numerous Bungalow homes for middle-class residents. The area was developed largely between 1892 and 1940, with limited modern incursions in the form of apartments having been built in the decades since. It retains its residential character to this day, though many of the large single-family homes have been converted into multi-unit dwellings.
Located roughly one mile from the heart of Downtown Spokane, the Ninth Avenue Historic District is an example of an early residential development in Spokane, free of commercial incursions. Notable architects including Kirtland Cutter, Willis Ritchie, Julius Zittel, Loren L. Rand, John K. Dow and Albert Held designed homes in the district.
In the present day, the area is part of the Cliff/Cannon neighborhood of Spokane, stretching from the historic Cannon's Addition in the west over to Monroe Street, a major arterial extending from the north side of Spokane through downtown and up onto the South Hill, in the east. It makes up part of what is now known as the "lower South Hill" for its location near the bottom of a hill which rises abruptly from the downtown area to the north. The terrain surrounding the Ninth Avenue Historic District falls off dramatically on the west to a valley containing Latah Creek, which marks a natural western boundary, and drops to the north to the valley of the Spokane River and Downtown Spokane in the north, while terrain rises to the west and south as one continues up into the South Hill residential area of Spokane.