New York - Criteria: A (event)
| Little Falls Historic District |
| Littlefield, Hamilton and Rhoda, House |
| Little House |
| LITTLE JENNIE (Chesapeake Bay bugeye) |
| Little Red |
| Little Theatre |
| Little York Pavilion |
| Liverpool Cemetery |
| Lloyd, Joseph, House |
| Loch Sheldrake Synagogue |
| Lock 18 of Enlarged Erie Canal |
| Lockport Industrial District |
| Lock Tender's House and Canal Store Ruin |
| Locust Lawn Estate |
| Loew's Kings Theatre |
| Loew's State Theater |
| Log Cabin Church |
| Longbotham, Nathaniel, House |
| Long Island City Courthouse Complex |
| Long Island Motor Parkway |
| Long Island National Cemetery |
| Long Island Rail Road Station at Farmingdale |
| Look Building |
| Loomis Family Farm |
| Loon Lake Mountain Fire Observation Station |
| Lord and Burnham Building |
| Lorillard Snuff Mill |
| Losee, Isaac, House |
| Lower Dock Hill Road Stone Arch Bridge |
| Lower East Side Historic District |
| Lower Genesee Street Historic District |
| Lower Landing Archeological District |
| Lower Mill |
| Lower Shavertown Covered Bridge |
| Lowertown Historic District |
| Lowville Masonic Temple |
| Lustron Houses of Jermain Street Historic District |
| Lynch Hotel |
| Lynch, James, House |
| Lyon Mountain Railroad Station |
| Lyon Street School |
| Mabee House |
| MacDougal-Sullivan Gardens Historic District |
| Macedonia Baptist Church |
| MACHIGONNE (ferry) |
| Macmillan Building |
| Macy, R. H., and Company Store |
| Madison Avenue Facade of the Squadron A Armory |
| Madison Barracks |
| Madison Square-West Main Street Historic District |
| Magen David Synagogue |
| Magill Cottage |
| Main Building, Vassar College |
| Maine Central School |
| Main Mall Historic District |
| Main-Partition Streets Historic District |
| Main School |
| Main Street Bridge |
| Main Street Historic Distrct |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Historic District |
| Main Street Subway Station (Dual System IRT) |
| Major's Inn and Gilbert Block |
| Mallory Mill |
| Mallows, The |
| Malone Armory |
| Malone Freight Depot |
| Mamakating Park Historic District |
| Mandeville House |
| Manhanset Chapel |
| Manhasset Monthly Meeting of the Society of Friends |
| Manhattan Beach Jewish Center |
| Manhattan Company Building |
| Manion's General Store |
| Manlius Village Historic District |
| Mann, Andrew, Inn |
| Mann, Donald, House |
| Mann, Horace, School |
| Manor Club |
| Mansion Historic District |
| Maple Avenue Historic District |
| Maple Grove Cemetery |
| Maples, The |
| Marble Schoolhouse |
| Marcella Sembrich Opera Museum |
| Marine Air Terminal |
| Market House |
| Market Street Historic District |
| Market Street Historic District |
| Market Street Historic District |
| Markham Cobblestone Farmhouse and Barn Complex |
| Marlborough Building |
| Marquay Cottage |
| Marshall House |
| Marsh-Link-Pollock Farm |
Data from United States Park Service and Wikidata
