All - Architectural style - Italianate architecture
| Harris, Capt. Thomas C., House |
| Harrison County Courthouse |
| Hartwig, Ferdinand C., House |
| Harvey House |
| Harward Family House |
| Hathaways Store |
| Haven, Wilbur Fiske, House |
| Hawkeye Insurance Company Building |
| Hays County Jail |
| Hays, E. R., House |
| Hebard, Alfred, House |
| Heck-Hasler House |
| Heights, The |
| Heiney's Meat Market |
| Helpman-Chaney House |
| Henni Hall |
| Henry County Courthouse |
| Henry County Savings Bank |
| Henry, Jacob H., House |
| Henshie-Briggs Row House |
| Henson House |
| Heritage Hall |
| Herman House |
| Hibbard, Benjamin, Residence |
| Hibbard, Charles H., House |
| Hibbard, Enoch, House and Grannis, George, House |
| Hichborn, Nathan G., House |
| High Street Commercial Block |
| Hill, Addison, House |
| Hill, John Fitch, House |
| Hill, Rev. Thomas, House |
| Hillside |
| Hinckley, Col. J., House |
| Hinkel, Ann Charlotte and Jacob, House |
| Hitt, Samuel M., House |
| Hixon, Gideon C., House |
| Hoag, J. J., House |
| Hoard, Arthur R., House |
| Hoffner Historic District |
| Holcomb, William H., House |
| Hollencamp House |
| Hollister-Parry House |
| Holmes, Dr. Job, House |
| Holmes-Tallman House |
| Holt Brothers Banking Company Building |
| Holt, L. Banks, House |
| Holy Cross Monastery and Chapel |
| Honolulu House |
| Hope, Thomas, House |
| Hopkins, Elisha, House |
| Hopkins, Judge Henry William and Francesca, House |
| Horner, John Scott, House |
| Horn House |
| Horton-Suiter House |
| Horton, William, Farmhouse |
| Hose House No. 10 |
| Hosford, John, House |
| Hotel Lindo |
| Hotel Metropole |
| Hotel Tipton |
| Houghton County Courthouse |
| House at 107 Waban Hill Road |
| House at 10 Arlington Street |
| House at 15 Davis Avenue |
| House at 15 Wave Avenue |
| House at 17 Cranston Street |
| House at 190 Main Street |
| House at 197 Hornbine Road |
| House at 20 Hancock Road |
| House at 21 Chestnut Street |
| House at 230 Winchester Street |
| House at 23 Avon Street |
| House at 25 Stanton Road |
| House at 26 Center Avenue |
| House at 30 Kelton Street |
| House at 322 Haven Street |
| House at 3 Davis Avenue |
| House at 402 N. East St. |
| House at 42 Hopkins Street |
| House at 42 Salem Street |
| House at 4344 Frances Road |
| House at 44 Stanton Road |
| House at 45 Claremont Avenue |
| House at 509 North Avenue |
| House at 50 Pelham Street |
| House at 5 Bennett Street |
| House at 5 Lincoln Road |
| House at 60 William Street |
| House at 68 Maple Street |
| House at 705 3rd Street, SE |
| House at 7 Salem Street |
| House at 81 Pearl Street |
| House at 823 Ohio Street |
| House at 8 Park Street |
| House at 9 Linden Street |
| House at 9 Park Street |
| Houses at 37-47 North Fifth St. |
| Howard Block |
| Howe, Edgar W., House |
| Howe School |
Data from United States Park Service and Wikidata
