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 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.
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 the 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 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 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 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 Dr. Herbert S. Nichols House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The George Pipes 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 Dr. James Rosenfeld House is a house located in southwest Portland, Oregon listed on the National Register of Historic Places.
The Waldo Block, located in downtown Portland, Oregon, is 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.
