Massachusetts - Significance region: National
| Hastings, Oliver, House |
| Hasty Pudding Club |
| Hayden Building |
| Headquarters House |
| Heard-Lakeman House |
| Heath, Charles, House |
| Heath, Ebenezer, House |
| H.H. Richardson Historic District of North Easton |
| High Street Historic District |
| Hinckley, Capt. Joseph, House |
| Holmes, Oliver Wendell, House |
| Holyhood Cemetery |
| Holyoke Canal System |
| Hotel Adelaide |
| Hotel Kempsford |
| House at 105 Marion Street |
| House at 12-16 Corey Road |
| House at 12 Linden Street |
| House at 12 Vernon Street |
| House at 155 Reservoir |
| House at 156 Mason Terrace |
| House at 19 Linden Street |
| House at 25 Stanton Road |
| House at 38-40 Webster Place |
| House at 44 Linden Street |
| House at 44 Stanton Road |
| House at 4 Perry Street |
| House at 53 Linden Street |
| House at 5 Lincoln Road |
| House at 83 Penniman Place |
| House at 89 Rawson Road and 86 Colburne Crescent |
| House at 9 Linden Street |
| House of Seven Gables Historic District |
| Houses at 76-96 Harvard Avenue |
| Howe, Samuel Gridley and Julia Ward, House |
| Hutchinson's, Gov. Thomas, Ha-ha |
| Hyannis Port Historic District |
| Hyannis Road Historic District |
| Inness-Fitts House and Studio/Barn |
| Isham, Herman, House |
| Jackson, Thaddeus, House |
| Jacob's Pillow Dance Festival |
| Jacob's Pillow Dance Festival |
| John Fitzgerald Kennedy National Historic Site |
| John F. Kennedy Federal Building |
| Johnson, Nathan and Mary (Polly), Properties |
| Kennedy Compound |
| Kilsyth Terrace |
| King's Chapel |
| Lancaster Industrial School for Girls |
| Lane, Fitz Henry (formerly known as Fitz Hugh), House |
| Lawrence Light Guard Armory |
| Leavitt-Hovey House |
| Lee, Jeremiah, House |
| Lexington Green |
| Liberty Farm |
| Liberty Tree District |
| Lincoln, Gen. Benjamin, House |
| Linden Park |
| Linden Square |
| Little, Arthur D., Inc., Building |
| Lodge, Henry Cabot, House |
| Longfellow House-Washington’s Headquarters National Historic Site |
| Long Wharf and Custom House Block |
| Lowell Locks and Canals Historic District |
| Lowell National Historical Park |
| Lowell's Boat Shop |
| LUNA (tugboat) |
| Lyman School for Boys |
| Lynch-O'Gorman House |
| Malcolm X-Ella Little Collins House |
| Marblehead Historic District |
| Marcel Breuer House and Studio |
| Marconi-RCA Wireless Receiving Station |
| Marconi Wireless Station Site |
| Market Square Historic District |
| Massachusetts General Hospital |
| Massachusetts Hall, Harvard University |
| Massachusetts Historical Society Building |
| Massachusetts Mental Health Center |
| Massachusetts Statehouse |
| McKay, Donald, House |
| McLean Hospital National Register District |
| Mechanics Hall |
| Meetinghouse Green Historic District |
| Melville, Herman, House |
| Memorial Hall, Harvard University |
| Merrifield House |
| Methodist Church |
| Metropolitan Theatre |
| Middlesex Canal |
| Milestone |
| Milestone |
| Mills-Stebbins Villa |
| Mill Way Historic District |
| Minot, George R., House |
| Minot's Ledge Light |
| Minute Man National Historical Park |
| Mission House |
| Monomoy Point Lighthouse |
Data from United States Park Service and Wikidata
