The following list presents the full set of National Register of Historic Places listings in Multnomah County, Oregon. However, please see separate articles for listings in each of Portland's five quadrants.
The Frigidaire Building or Templeton Building is a building in southeast Portland, Oregon listed on the National Register of Historic Places. The building was designed by William C. Knighton and Leslie D. Howell and completed in 1929 for O.E. (Oscar) Heintz and occupied by Frigidaire until 1934. When prohibition was repealed in 1933, the Oregon Liquor Control Commission was created through Oregon's Knox Bill. OLCC occupied the building once Frigidare left. Later it was occupied by R.J. Templeton, an auto parts distributor.
The Balfour–Guthrie Building is a building located in downtown Portland, Oregon listed on the National Register of Historic Places.
The Cascade Building is a historic high-rise located at 520–538 SW 6th Avenue in Downtown Portland, Oregon. It was built in 1925 and was listed on the National Register of Historic Places on February 23, 1989.
The Beth Israel School, a former school building located in downtown Portland, Oregon, is listed on the National Register of Historic Places.
The Joseph R. Bowles House is a house located in southwest Portland, Oregon, that is listed on the National Register of Historic Places.
The Loyalty Building, formerly known as the Buyers Building and the Guardian Building, is a building located in downtown Portland, Oregon listed on the National Register of Historic Places.
The Concord Building is a building located in downtown Portland, Oregon listed on the National Register of Historic Places.
The Elm Street Apartments is a building complex located in southwest Portland, Oregon listed on the National Register of Historic Places.
The Envoy Apartment Building is a building located in southwest Portland, Oregon listed on the National Register of Historic Places. The building was originally apartments but was converted into condominiums in 2004.
The M. Lloyd Frank Estate, also known as the Frank Manor House, is an historic building on campus of Lewis & Clark College, in Portland, Oregon. It is listed on the National Register of Historic Places.
The Gilbert Building, also known as the Jacobs Building and Taylor Hotel, is a historic building located in downtown Portland, Oregon listed on the National Register of Historic Places.
The Calumet Hotel, also known as the Esquire Hotel, is a former hotel building located in downtown Portland, Oregon, that is listed on the National Register of Historic Places. The building was changed from a commercial hotel to a residential hotel for low-income residents in the 1930s. At some point, it took the name Esquire Hotel. By the time of its nomination to the National Register, in 1983, it was vacant. The building was renovated in 2008–09 and is now known as "The Esquire" apartments.
The Medical Arts Building is a historic building located at 1020 SW Taylor Street in Downtown Portland, Oregon. It was completed in 1925 by the Houghtaling & Dougan architecture firm, and was listed on the National Register of Historic Places on November 6, 1986.
The 705 Davis Street Apartments is a historic residential building located at 2141 Northwest Davis Street in Portland, Oregon, in the United States. It was designed by Morris H. Whitehouse and J. André Fouilhoux via the firm Whitehouse & Fouilhoux, and was completed in 1913. The building was added to the National Register of Historic Places on October 10, 1980.
