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 six quadrants.
The following outline is provided as an overview of and topical guide to the U.S. state of Oregon:
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 When prohibition was repealed in 1933, the Oregon Liquor Control Commission was created through Oregon's Knox Bill.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 Gaston–Strong House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places. An early resident was Joseph P. Gaston.
The Giesy–Failing House is a house located southwest Portland, Oregon listed on the National Register of Historic Places. It is located in the Southwest Hills neighborhood.
The Rufus C. Holman House is a house located in southwest Portland, Oregon, listed on the National Register of Historic Places. It is located in the Southwest Hills neighborhood.
The Edward D. Kingsley House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The Hotel deLuxe is a hotel located in southwest Portland, Oregon, in the Goose Hollow neighborhood.
The Dr. Herbert S. Nichols House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The Samuel G. Reed House is a house located in southwest Portland, Oregon, listed on the National Register of Historic Places.
The Roosevelt Hotel was a hotel located in downtown Portland, Oregon at 1005 SW Park. It was built in 1924 and is listed on the National Register of Historic Places. In 2000–2001 the building was converted to condominiums.
The Maurice Seitz House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The William Bittle Wells House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The James E. Wheeler House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The L.B. Menefee House is a house located in the Portland Heights neighborhood of Portland, Oregon designed by prominent architect John Virginius Bennes. The house is registered on the National Register for Historic Places. The house was originally designated to house the archbishop of the Roman Catholic Archdiocese of Portland, Oregon.
The Portland Skidmore/Old Town Historic District is an historic district in Portland, Oregon's Old Town Chinatown neighborhood, in the United States. The approximately 20-block area, center around Burnside Street and named after the Skidmore Fountain, is known for exhibiting Italianate architecture, though High Victorian Italianate, Renaissance Revival, Richardsonian Romanesque, and Sullivanesque styles are also present. In addition to Skidmore Fountain, structures within the district's boundaries include the Blagen Block, Delschneider Building, Hallock and McMillin Building, New Market Theater, New Market Alley Building, New Market Annex, and Poppleton Building.
