Kentucky - Criteria: C (architecture/engineering)
| Lassing, Morris, House |
| Lawson, Thomas, House |
| Lear, Judge V. A., House |
| Leatherer-Lemon House |
| Leatherman House |
| Lebanon Historic Commercial District |
| Lebanon National Cemetery |
| LeCompte Saloon |
| Lee House |
| Lee's Creek Covered Bridge |
| Lee's Tavern |
| Leick House |
| Lemon, James, Houses |
| Levy Brothers Building |
| Lewis, Alpheus, House |
| Lewisburg Historic District |
| Lewis, Dr. John, House |
| Lewisport Masonic Lodge |
| Lewiston House |
| Lewis, Woodson, House |
| Lexington City National Bank Building |
| Lexington Dry Goods Company Building |
| Lexington-Fayette County Government Building Block |
| Lexington Herald Building |
| Liberty Hall |
| Licking Riverside Historic District |
| Limerick Historic District |
| Lincliff |
| Lincoln County Courthouse |
| Lincoln Institute Complex |
| Lincoln, Mordecai, House |
| Linden Grove Cemetery |
| Lindsay, James-Trotter, William, House |
| Linn, Will, House |
| Linsey, William, House |
| Little Loomhouses |
| Lloyd, James M., House |
| L & N Passenger Depot |
| L & N Steam Locomotive No. 152 |
| Locke-Mount House |
| Locust Avenue |
| Locust Grove |
| Loder House |
| Loew's and United Artists State Theatre |
| Logan House |
| Logan, W. W., House |
| Long, D. T., House |
| Long Run Baptist Church and Cemetery |
| Longview |
| Longview Farm House |
| Loudoun House |
| Louisa Commercial Historic District |
| Louisa United Methodist Church |
| Louisville and Nashville Railroad Office Building |
| Louisville and Nashville Railroad Passenger Depot |
| Louisville and Nashville Railroad Station |
| Louisville City Hall Complex |
| Louisville Free Public Library |
| Louisville Free Public Library, Western Colored Branch |
| Louisville Male High School |
| Louisville Municipal Bridge, Pylons and Administration Building |
| Louisville-Nashville Turnpike Segment |
| Louisville Trust Building |
| Louisville War Memorial Auditorium |
| Louisville Water Company Pumping Station |
| Lovelace, Andrew, Jr., House |
| Lowell, James Russell, Elementary School |
| Lowry, William C., House |
| Ludlow Lagoon Clubhouse |
| Lyddan, Pat, House |
| Lyles, Pete, House |
| Lyne, Thomas, House |
| Lynnford-Lyndon Hall |
| Lyon, Chittenden P., Jr., House |
| Madison County Courthouse |
| Madisonville Commercial Historic District |
| Madisonville Public Library |
| Madrid Building |
| Magowan, Abraham, House |
| Male Academy |
| Mansion Hill Historic District |
| Maple Hill |
| Maplehurst |
| Maplewood |
| Margaret Hall |
| Marianne Theater |
| Market House |
| Marmaduke Building |
| Marrowbone Historic District |
| Marshall-Bryan House |
| Martin, Benjamin, House |
| Martin House |
| Martin House |
| Martin, James G., House |
| Martin, Lewis Y., House |
| Marvin, Dr. J. B., House |
| Mason, Peter, House |
| Mason, Sue Shelby, House |
| Matheny-Taylor House |
| Mathers, William, House |
Data from United States Park Service and Wikidata
