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 Kimpton Hotel Vintage Portland, historically known as the Imperial Hotel and also as The Plaza Hotel, is a historic hotel building in downtown Portland, Oregon, United States. It was completed in 1894 and was listed on the National Register of Historic Places in 1985 as "Imperial Hotel". Since 2015, the building has been in use as the Kimpton Hotel Vintage Portland, and prior to then it had been known as the Hotel Vintage Plaza since 1991.
The Seward Hotel, also known as the Governor Hotel, is a historic hotel building in downtown Portland, Oregon, United States, that is listed on the National Register of Historic Places (NRHP). Built in 1909, it is one of two NRHP-listed buildings that make up the Sentinel Hotel, the other being the 1923-built Elks Temple. The Seward was renamed the Governor Hotel in 1931, closed in the mid-1980s, and reopened in 1992 joined with the former Elks building, and thereafter formed the east wing of a two-building hotel.
The Kenton Hotel is a historic hotel in Portland, Oregon. It was built in 1909, added to the National Register of Historic Places on October 16, 1990, and identified as a contributing resource in the Kenton Commercial Historic District when the district was added to the National Register on September 3, 2001.
William Christmas Knighton was an American architect best known for his work in Oregon. Knighton designed the Governor Hotel in Portland, Johnson Hall at the University of Oregon, and the Oregon Supreme Court Building and Deepwood Estate in Salem. He served as Oregon's first state architect from 1911–1915, appointed by Governor Oswald West. By 1915, Knighton had designed ninety building projects as state architect. In 1919, Knighton was appointed by Governor Ben Olcott as the first president of the Oregon State Board of Architectural Examiners, a position he held until 1922. In 1920, Knighton was elected the sixth president of the Oregon Chapter of the American Institute of Architects. He remained on the chapter's board of trustees for several years and was chair of the Chapter Legislative Committee into the 1930s.
Jake's Famous Crawfish is a seafood restaurant in downtown Portland, Oregon, founded in 1892 by Jacob "Jake" Lewis Freiman. It is housed in the Whitney and Gray Building, completed in 1910.
The Samuel Cobb House is a building in southeast Portland, Oregon, 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 Electric Building is a building located in downtown Portland, Oregon, listed on the National Register of Historic Places. It was built in 1910 for the Portland Railway, Light and Power Company, to serve as the company's headquarters and to house its main electricity generating station.
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 Bertha M. and Marie A. Green House is a building located in southwest Portland, Oregon, listed on the National Register of Historic Places.
The John S. Honeyman House is a house located in the West End area of downtown Portland, Oregon, listed on the National Register of Historic Places.
The Dr. Frank B. Kistner House, also known as the Kistner–Kalberer House, is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The Morgan Building is an office building located in downtown Portland, Oregon, listed on the National Register of Historic Places.
The Multnomah Hotel, located in downtown Portland, Oregon, United States, is a historic hotel building listed on the National Register of Historic Places. It currently operates as the Embassy Suites by Hilton Portland Downtown.
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 Walter V. Smith 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.
