New York - Significance region: Local
| American Radiator Company Factory Complex |
| American Thread Building |
| Ames Academy Building |
| Ames Cottage |
| Ames, Leonard, Farmhouse |
| Ames, Orson, House |
| AME Zion Church of Kingston and Mt. Zion Cemetery |
| Amherst Avenue Historic District |
| Amos Block |
| Amphion Piano Player Factory |
| Amrita Club |
| Amsterdam (46th Separate Company) Armory |
| Amsterdam City Hall |
| Amsterdam Free Library |
| Ancramdale Historic District |
| Ancram Hamlet Historic District |
| Andes Historic District |
| Andre, Maj. John, Monument |
| Andrews Street Bridge |
| Andrews United Methodist Church |
| Angelica Park Circle Historic District |
| Angus Cobblestone Farmhouse and Barn Complex |
| Annas Farmhouse |
| Annunciation School |
| Ansche Chesed Synagogue |
| Ansco Company Charles Street Factory Buildings |
| Anshei Glen Wild Synagogue |
| Anthony, Levi, Building |
| Anthony, Susan B., Childhood House |
| Apartment at 1261 Madison Avenue |
| Apartment Buildings at 131-135 East 66th Street and 130-134 East 67th Street |
| Appeldoorn Farm |
| Apple Tavern |
| Apthorp Apartments |
| Aqudas Achim Synagogue |
| Aquinas Institute |
| Arbor Hill Historic District-Ten Broeck Triangle |
| Arcade and Attica Railroad |
| Arcade Center Farm |
| Archer, William, House |
| Argent Apartments |
| Arlington Hotel |
| Armory Square Historic District |
| Arnold, Benjamin Walworth, House and Carriage House |
| Arsenal House |
| Arthur Tavern |
| Arvine Heights Historic District |
| Asbury Historic District |
| Asbury United Methodist Church and Bethel Chapel and Cemetery |
| Ascension Roman Catholic Church Complex |
| Ashokan-Turnwood Covered Bridge |
| Ashton House |
| Association of the Bar of the City of New York |
| Astor Home for Children |
| Astoria Center of Israel |
| Astral Apartments |
| Athens Lower Village Historic District |
| A. T. House |
| Atlantic Avenue Tunnel |
| Attica Market and Main Historic District |
| Attlebury Schoolhouse |
| Atwater-Stone House |
| Aubertine Building |
| Auburn Button Works and Logan Silk Mills |
| Auclair-Button Farmstead |
| Audubon Park Historic District |
| Audubon Terrace Historic District |
| Aumic House |
| Aurora Steam Grist Mill |
| Aurora Village-Wells College Historic District |
| AuSable Chasm Bridge |
| Ausable Club |
| Austerlitz Historic District |
| Austin, Richard, House |
| Austin Street Police Athletic League (PAL) Center |
| Austin, William, House |
| Automobile Club of Buffalo |
| Avalon Knitting Company Mill |
| Ava Town Hall |
| Avenue U Station (Dual System BRT) |
| Avery Farmhouse |
| Avon Five Arch Bridge |
| Avon Inn |
| Avon Village Historic District |
| Ayling, John G., House |
| Azalea-Highland Park Terrace Historic District |
| Babcock, Dr. John, House |
| Babcock-Shattuck House |
| Babylon Library, The |
| Babylon Town Hall |
| Bacon-Harding Farm |
| Bacon-Stickney House |
| Bagg's Square East Historic District |
| Bailey House |
| Bailey, Jonathan, House |
| Bailey, William, House |
| Bainbridge Historic District |
| Bain Commercial Building |
| Bain, F.R., House |
| Baird Cottage |
Data from United States Park Service and Wikidata
