Massachusetts - Area of significance: Community Planning
| Jarvesville Historic District |
| Jenkins, Franklin B., House |
| Jewell, David L., House |
| John Eliot Historic District |
| John F. Kennedy Federal Building |
| Johnson, Edwin C., House |
| Johnson, Edwin, Three-Decker |
| Johnson, John and Edward, Three-Decker |
| Johnson, John, Three-Decker |
| Johnson, J. V., House |
| Johnson, Paul, Three-Decker |
| Johnson-Thompson House |
| Jones Tavern |
| Kaller, Erick, Three-Decker |
| Kaller, Erick, Three-Decker |
| Keene, Walter, House |
| Kelley, Mercelia Evelyn Eldridge, House |
| Kendal Green Historic District |
| Kensington Park Historic District |
| Kenwyn Apartments |
| Kessler, William F., House |
| Kilmer Street Fire Station |
| Kilsyth Terrace |
| Kimball, W.W., House |
| King Philip's Hill |
| Kingsbury-Whitaker House |
| Kingston Center Historic District |
| Knapp, Job, House |
| Lake Cochituate Dam |
| Lamson, Newton, House |
| Langmaid Building |
| Langmaid Terrace |
| Larchmont |
| Larson, Swan, Three-Decker |
| Laurel Hall |
| Lawrence, Phineas, House |
| Lawton Place Historic District |
| Lechmere Point Corporation Houses |
| Leland, Deacon William, House |
| Lennon, Edward J., House |
| Lenox High School |
| Lenox Street Apartments Historic District |
| Lenox Village Historic District |
| Levenson, Morris, Three-Decker |
| Leverett Center Historic District |
| Lewis, Charles D., House |
| L.H. Hamel Leather Company Historic District |
| Lincoln Center Historic District |
| Lincoln Estate-Elm Park Historic District |
| Lincoln-Sunset Historic District |
| Linden Park |
| Linden Square |
| Linden Street Bridge |
| Longmeadow Historic District |
| Longmeadow Street-North Historic District |
| Long Plain School |
| Longwood Historic District |
| Loring, George, House |
| Lovejoy, A. L., House |
| Lowell Cemetery |
| Lowell National Historical Park |
| Lowell Post Office |
| Lower Roxbury Historic District |
| Ludlow Center Historic District |
| Ludlow Village Historic District |
| Luke, Arthur F., House |
| Lumb, Thomas, Three-Decker |
| Lumb, Thomas, Three-Decker |
| Lundberg, Charles, Three-Decker |
| Luther's Corner |
| Lyman Street Historic District |
| Lynn Common Historic District |
| Lynn Fells Parkway, Metropolitan Park System of Greater Boston |
| Lynn Memorial City Hall and Auditorium |
| Lynn Public Library |
| Lynnwood |
| Macy-Colby House |
| Magnuson, Charles, Three-Decker |
| Mahaiwe Block |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Malvern Road School |
| Manchester Village Historic District |
| Manley, William M., House |
| Mann, James H., House |
| Manomet Mills |
| Maple Street Cemetery |
| Maplewood Cemetery |
| Mark, John, Three-Decker |
| Marlborough Brook Filter Beds |
| Marlborough Center Historic District |
| Marshfield Hills Historic District |
| Marstons Mills Hearse House and Cemetery |
| Martha's Vineyard Campground |
| Martin, Aaron, House |
| Masonic Block |
| Masonic Temple |
Data from United States Park Service and Wikidata
