Louisiana - Criteria: C (architecture/engineering)
| Fort Pike |
| Fort Proctor |
| Foster, J. E., House |
| Fourgeaud House |
| Fourth Church of Christ, Scientist |
| Franklinton High School |
| Frederick House |
| Freetown-Port Rico Historic District |
| French Market-Old Vegetable Market |
| Friscoville Street Historic District |
| Frithland |
| Frogmore |
| Frost House |
| Frozard Plantation House |
| Fuller House |
| Funk House |
| Gallier Hall |
| Gallier House |
| Garden District |
| Garland House |
| Garrett, Isaiah, Law Office |
| Gay, Andrew H., House |
| Genella, Mary Louise Kennedy, House |
| General Laundry Building |
| Geneva |
| Gibson Methodist Episcopal Church |
| Girod, Nicholas, House |
| Glynnwood |
| Godchaux-Reserve Plantation House |
| Gordon Hotel |
| Gordy House |
| Governor House Motor Hotel, The |
| Grace Episcopal Church |
| Grace Memorial Episcopal Church |
| Grand Cane United Methodist Church |
| Grant-Black House |
| Graugnard Farms Plantation House |
| Graugnard House |
| Greater St. James AME Church |
| Greenlaw House |
| Greenlawn |
| Green-Lovelace House |
| Greensburg Land Office |
| Greenville Hall |
| Gretna Historic District |
| Grevemberg House |
| Guaranty Bank, Park Avenue Branch |
| Guitreau House |
| Guy House |
| Hall, Gov. Luther, House |
| Hardin House |
| Harlem Plantation House |
| Harrisonburg Methodist Church |
| Hart House |
| Harvey House |
| Haydel-Jones House |
| Hazelwood Plantation |
| Heard, J. W., House |
| Hebert House |
| Hebert House |
| Heidelberg Hotel |
| Helvetia Dependency |
| Hemenway Furniture Co. Building |
| Hennen Building |
| Hermann-Grima House |
| Hermione |
| Hermitage |
| Hernsheim, Simon, House |
| Hewes House |
| Heyman-Stewart House |
| Hickory Springs Methodist Episcopal Church |
| Hill, The |
| Hirsch, Mayer, House |
| Hodges Gardens |
| Hodges House |
| Holly Grove |
| Holly Grove Methodist Church |
| Holy Trinity Catholic Church |
| Homeplace |
| Homeplace Plantation House |
| Homer Historic District |
| Homestead Plantation |
| Homestead Plantation Complex |
| Hope |
| Hope Lodge #145 |
| Hope Plantation House |
| Hope Terrace |
| Hopkins House |
| Houmas, The |
| House at 816 Jackson Street |
| Howard Auditorium-Louisiana Tech University |
| Howard Memorial Library |
| Hughes House |
| Iberville Parish Courthouse |
| Idlewild |
| Ilgenhurst |
| Isaacs-Williams Mansion |
| Island Home |
| Istre Cemetery Grave Houses |
| Jackson Barracks |
Data from United States Park Service and Wikidata
