Oregon - Criteria: C (architecture/engineering)
| Gilbert, Andrew T., House |
| Gilbert Building |
| Gilliam and Bisbee Building |
| Gilliland, Lewis T., House |
| Glenn, Hugh, House |
| Glide Ranger Station |
| Goeller, Fred, House |
| Gold Beach Ranger Station |
| Goldsmith, Alan and Barbara, House |
| Goodman, Joseph, House |
| Goodpasture Bridge |
| Gordon House |
| Gotter Hotel |
| Gowanlock, Elizabeth B., House |
| Grace Episcopal Church and Rectory |
| Graf, Andreas, House |
| Graham, Thomas, Building |
| Grand Stable Building and Adjacent Commercial Building |
| Grant, Henry M., House |
| Grant Pass City Hall and Fire Station |
| Grants Pass Supervisor's Warehouse |
| Grave Creek Bridge |
| Greasewood Finnish Apostolic Lutheran Church |
| Green, Bertha M. and Marie A., House |
| Green, Harry A. and Ada, House |
| Green Lantern Saloon |
| Greenwood, Frederick and Grace, House |
| Gresham Carnegie Library |
| Griffin, John N., House |
| Groat-Gates House |
| Hackleman Historic District |
| Hahn, Henry, House |
| Hall-Chaney House |
| Hall, Howard A., House |
| Halprin Open Space Sequence |
| Hamilton, Alexander B. and Anna Balch, House |
| Hamilton Building |
| Hamilton, Judge James Watson, House |
| Hancock Street Fourplex |
| Hannah Bridge |
| Hardman I.O.O.F. Lodge Hall |
| Hargadine Cemetery |
| Harlow Block |
| Harlow, Elmer, House |
| Harlow, Fred, House |
| Harmon-Neils House |
| Harris Bridge |
| Harrisburg Odd Fellows Hall |
| Hartley, Orrin B., House |
| Hart, Moses and Mary, Stone House and Ranch Complex |
| Haseltine, William A., House |
| Hawthorne Bridge |
| Hawthorne, Rachel Louise, House |
| Haycox, Ernest, Estate |
| Hayden Bridge |
| Hayse Blacksmith Shop |
| Heceta Head Lighthouse and Keepers Quarters |
| Heilbronner Block |
| Heimrich-Seufert House |
| Henry, C. K., Building |
| Heppner Hotel |
| Herschell-Spillman Noah's Ark Carousel |
| Hershberger Mountain Lookout |
| Heryford Brothers Building |
| Heryford, William P., House |
| Heusner, George F., House |
| Hexter, Levi, House |
| Hickey, James, House |
| Hill Hotel |
| Hill, Martin and Carrie, House |
| Hines, Pierre Rossiter and Charlotte, House |
| Hobson, John, House |
| Hollywood Theatre |
| Holman, Rufus C., House |
| Holmes, Gustavus, House |
| Holmes, William L., House |
| Holt-Saylor-Liberto House |
| Honeyman, David T. and Nan Wood, House |
| Honeyman, Jessie M., Memorial State Park Historic District |
| Honeyman, John S., House |
| Honeymoon Creek Snow-Survey Cabin |
| Hoodoo Ridge Lookout |
| Hood River County Library and Georgiana Smith Park |
| Hotel Alder |
| Hotel Ramapo |
| Hotel Western |
| Hot Lake Resort |
| Howell-Kohlhagen House |
| Hughes, Dr. Herbert H., House |
| Hughes, Patrick, House |
| Humason, Orlando, House |
| Hunter-Morelock House |
| Hyland, Olive and Ellsworth, Apartments |
| Imbrie Farm |
| Imnaha Guard Station |
| Imperial Garage |
| Imperial Hotel |
| Independence Historic District |
| Inman, Clarissa McKeyes, House |
| International Harvester Company Warehouse |
Data from United States Park Service and Wikidata
