Missouri - Area of significance: Architecture
| Hamilton House |
| Hamiltonian Federal Savings and Loan Association Building |
| Hamilton Place Historic District |
| Hammerman, Harry, House |
| Hampton Park |
| Hanley, Martin Franklin, House |
| Hannibal Old Police Station and Jail |
| Hanover Lutheran Church |
| Hanson House |
| Hargadine-McKittrick Dry Goods Building |
| Harney, Maj. Gen. William S., Summer Home |
| Harold-Knoernschild Farmstead Historic District |
| Harris Addition Historic District |
| Harris, Capt. Thomas C., House |
| Harris-Chilton-Ruble House |
| Harris, Col. John, House |
| Harris House |
| Harrison School |
| Harrisonville Courthouse Square Historic District |
| Harrison, William Henry and Lilla Luce, House |
| Harris Teachers College |
| Hawken House |
| Hawthorne, Nathaniel, Elementary School |
| Hay, Dr. J.A., House |
| Hays, Daniel Boone, House |
| Haysler, Gustave C., House |
| Heard, John T. and Lillian, House |
| Hebron |
| Heercleff |
| Heim, Ferd., Brewing Company Bottling Plant |
| Helm, Charles H., House |
| Helm, John and Wilhelmina, House |
| Hempstead School |
| Henderson, Dr. Generous, House |
| Henderson Hall |
| Hendren Farm |
| Henry Avenue Historic District |
| Herbert, Alois, Double House |
| Hermann High School |
| Hermann Historic District |
| Hess, Philip, House |
| Hicklin Hearthstone |
| Hicklin School |
| Hickman, Thomas, House |
| Hickory Street District |
| High Hill School |
| Highland Avenue Historic District |
| Hillview Cooperative Dairy Farm Historic District |
| Hipkins, Joseph, House |
| Hi-Pointe-De Mun Historic District |
| Historic District B |
| Historic District C |
| Historic District D |
| Historic District E |
| Historic District F |
| Historic District H |
| Hobo Hill Historic District |
| Hockaday, John Augustus, House |
| Holland Building |
| Holly Hills Historic District |
| Holly Place Historic District |
| Holmes-Dakin Building |
| Holy Corners Historic District |
| Holy Cross Parish District |
| Holy Rosary Historic District |
| Hook, Mary Rockwell, House |
| Hosmer Dairy Farm Historic District |
| Hotel Bothwell |
| Hotel Phillips |
| Hotel Sansone |
| Hotel Statler |
| House at 1413 Lafayette St. |
| House at 323 Themis Street |
| House at 5011 Sunset Drive |
| House at 54 E. 53rd Terrace |
| Houston Ranger Station Historic District |
| Houx-Hoefer-Rehkop House |
| Howard Neighborhood Historic District |
| Howe, Frank M., Residence |
| Howlett Gulf |
| Hubecky House |
| Huber's Ferry Farmstead Historic District |
| Hughes, Frank, Memorial Library |
| Hughes, Mollie and Josephine, House |
| Huhn-Harrison House |
| Hunter-Dawson House |
| Hunt, William B., House |
| Hunt, Wilson Price, House |
| Hyde Park East Historic District, Old |
| Hyde Park Historic District |
| Hyde Park West Historic District, Old |
| IBEW Building |
| Immaculate Conception Church and Rectory |
| Immaculate Conception School |
| Independence Boulevard Christian Church |
| Infirmary Building, Missouri State Hospital Number 3 |
| Inglewood |
| Insurance Building-Consumers Cooperative Association Building |
| Inter-State Building |
| Inter-State Grocer Company Building |
Data from United States Park Service and Wikidata