This list presents the full set of buildings, structures, objects, sites, or districts designated on the National Register of Historic Places in Harney County, Oregon, and offers brief descriptive information about each of them. The National Register recognizes places of national, state, or local historic significance across the United States.  Out of over 90,000 National Register sites nationwide,  Oregon is home to over 2,000,  and 7 of those are found in Harney County.
|||Name on the Register||Image||Date listed ||Location||City or town||Description|
|1||Allison Ranger Station||September 12, 1980
|NE of Burns||Burns|
|2||Double-O Ranch Historic District||October 25, 1982
|Double-O County Rd.||Burns|
|3||Pete French Round Barn||September 10, 1971
|N of Diamond Station||Burns vicinity|
|4||Frenchglen Hotel||November 15, 1984
|5||P Ranch||January 29, 1979
|S of Burns||Burns|
|6||Riddle Ranch||May 23, 1991
|Little Blitzen R., E of Donner and Blitzen R.||Frenchglen|
|7||Sod House Ranch||January 29, 1979
|S of Burns||Burns|
- National Register of Historic Places listings in Oregon
- Listings in neighboring counties: Crook, Deschutes, Grant, Humboldt, Lake, Malheur, Washoe
- Historic preservation
- History of Oregon
- Lists of Oregon-related topics
- Andrus, Patrick W.; Shrimpton, Rebecca H.; et al. (2002), How to Apply the National Register Criteria for Evaluation, National Register Bulletin (15), National Park Service, U.S. Department of the Interior, OCLC 39493977, archived from the original on April 6, 2014, retrieved June 20, 2014.
- National Park Service, National Register of Historic Places Program: Research, archived from the original on February 1, 2015, retrieved January 28, 2015.
- Oregon Parks and Recreation Department, Oregon Historic Sites Database, retrieved August 6, 2015. Note that a simple count of National Register records in this database returns a slightly higher total than actual listings, due to duplicate records. A close reading of detailed query results is necessary to arrive at the precise count.
- "National Register of Historic Places: Weekly List Actions". National Park Service, United States Department of the Interior. Retrieved on March 22, 2019.
- Numbers represent an ordering by significant words. Various colorings, defined here, differentiate National Historic Landmarks and historic districts from other NRHP buildings, structures, sites or objects.
- The eight-digit number below each date is the number assigned to each location in the National Register Information System database, which can be viewed by clicking the number.