Oregon - Significance region: Local
| Hackett, Erwin Charles, House |
| Hadley-Locke House |
| Hafer, Edgar F., House |
| Hagey, Levi, House |
| Hahn, Henry, House |
| Hall-Chaney House |
| Haller-Black House |
| Hall, Howard A., House |
| Hamilton, Alexander B. and Anna Balch, House |
| Hamilton, Benjamin, House |
| Hamilton Building |
| Hamilton, Judge James Watson, House |
| Hamley and Company Leather Goods Store |
| Hamlin, Charles Hunter, House |
| Hancock Street Fourplex |
| Hanley, Michael, Farmstead |
| Hanscom Hall |
| Hanthorn Apartments |
| Harding, Benjamin F., House |
| Hardman I.O.O.F. Lodge Hall |
| Hargadine Cemetery |
| Harlocker, Judge Lintner, House |
| Harlow Block |
| Harlow, Elmer, House |
| Harlow, Fred, House |
| Harmon-Neils House |
| Harrington House |
| Harris Building |
| Harrisburg Odd Fellows Hall |
| Harris, Dr. Homer H., House |
| Harrison Court Apartments |
| Harritt, Jesse and Julia, House |
| Hartley, Orrin B., House |
| Hart, Moses and Mary, Stone House and Ranch Complex |
| Haseltine, William A., House |
| Hatch, Charles and Elizabeth, House |
| Hawthorne, Rachel Louise, House |
| Hayse Blacksmith Shop |
| Heathman Hotel |
| Heilbronner Block |
| Heimrich-Seufert House |
| Heimuller, John and Carolena, Farmstead |
| Helm-Hout House |
| Hendricks Building (K.O.T.M.) |
| Henry, C. K., Building |
| Heppner Hotel |
| Hershberger Mountain Lookout |
| Heryford Brothers Building |
| Heryford, William P., House |
| Heusner, George F., House |
| Hexter, Levi, House |
| Hibbert, William, House |
| Hiberian Hall |
| High Gravel Mine |
| Hillcrest Orchard Historic District |
| Hill Hotel |
| Hill, Martin and Carrie, House |
| Hines, Pierre Rossiter and Charlotte, House |
| Hinkle-Reid House |
| Historic City Hall |
| Hobson-Gehlen General Merchandise Store |
| Hobson, John, House |
| Hochstedler, George, House |
| Holden, William B., House |
| Hole House |
| Hollywood Theatre |
| Holman, Capt. Herbert, House |
| Holmes, Gustavus, House |
| Holmes, Harry and Eleanor, House |
| Holt-Saylor-Liberto House |
| Honeyman Hardware Company Building |
| Honeyman, John S., House |
| Honeyman, Walter B. & Myrtle E., House |
| Honeymoon Creek Snow-Survey Cabin |
| Hood River County Library and Georgiana Smith Park |
| Hood River High School |
| Hoover, Thomas Benton, House |
| Hope-Van Allen House |
| Hotel Alder |
| Hotel Alma |
| Hotel Josephine Annex |
| Hotel North Bend |
| Hotel Ramapo |
| Hotel Western |
| Hover, George A., House |
| Howe, C. J., Building |
| Howell, John W., House |
| Howell-Kohlhagen House |
| Hryszko Brothers Building |
| Hub Department Store Building |
| Hudelson, A.B. and Son, Building |
| Hughes, Dr. Herbert H., House |
| Hughes, Patrick, House |
| Hugo Community Baptist Church |
| Humason, Orlando, House |
| HUME, MARY D. |
| Hunter-Morelock House |
| Hyland, Olive and Ellsworth, Apartments |
| Imperial Garage |
| Imperial Hotel |
Data from United States Park Service and Wikidata
