New York - Area of significance: Architecture
| Hamilton Park Community Houses |
| Hamilton Union Church Rectory |
| Hamilton Union Presbyterian Church |
| Hamilton Village Historic District |
| Hamlet of Warrensburgh Historic District |
| Hamlin Park Historic District |
| Hammondsport Union Free School |
| H.A. Moyer Factory Complex |
| Hampstead |
| Hancock House |
| Hand, Elias, House |
| Hand-Hale Historic District |
| Hand, Walter, House |
| Hanford, George C., House |
| Hanford Mill |
| Hanford, Uriah, House |
| Hankins District No. One Schoolhouse |
| Hanover Square Historic District |
| Hanover Square Historic District |
| Hanson Place Seventh Day Adventist Church |
| Harbor House |
| Harbor Road Historic District |
| Hardenbergh, Isaac, House |
| Hardenbergh-Jenkins Farm |
| Harden, Edward, Mansion |
| Harden House |
| Harder Knitting Mill |
| Harding, Stephen, House |
| Haring-Eberle House |
| Harlem Courthouse |
| Harlem River Houses |
| Harlem Savings Bank |
| Harlow Row |
| Harmanus Bleecker Library |
| Harmon Cobblestone Farmhouse and Cobblestone Smokehouse |
| Harmon, William, House |
| Harmony Mill Historic District |
| Harmony Mill No. 3 |
| Harned, John, House |
| Harpursville United Methodist Church |
| Harrington Colbblestone Farmhouse and Barn Complex |
| Harrison, Edward, House |
| Harrison Grist Mill |
| Harrison Radiator Corporation Factory |
| Harrison, Wallace K., Estate |
| Hart-Cluett Mansion |
| Hart, Eleazer, House |
| Hartford Baptist Church and Cemetery |
| Hart House |
| Hartman, William, Farmstead |
| Hartsdale Railroad Station |
| Hartwell, W. W., House & Dependencies |
| Hartwick Historic District |
| Harvard Club of New York City |
| Hasbrouck House |
| Hasbrouck, Jean, House |
| Hasbrouck, Judge Jonathan, House |
| Hasbrouck, Maj. Jacob, Jr. House |
| Hasbrouck Stone House |
| Haskell House |
| Hastings Farmstead |
| Hastings Prototype House |
| Haswell, Isaac M., House |
| Hatch, Barbara Rutherford, House |
| Hatch, Vermont, Mansion |
| Hathaway |
| Hathaway Cottage |
| Hatheway Homestead |
| Haughwout, E. V., Building |
| Hauppauge Methodist Episcopal Church |
| Havens, James, Homestead |
| Haverling Farm House |
| Haviland-Davison Grist Mill |
| Haviland's, Widow, Tavern |
| Hawes Homestead |
| Hawkins Hall |
| Hawkins Homestead |
| Hawkins, Jacob & Caroline, House |
| Hawkins, Jedediah, House |
| Hawkins, Robert, Homestead |
| Hawley-Green Street Historic District |
| Hawleyton Methodist Episcopal Church, Old |
| Haxton-Griffin Farm |
| Haxtun-Tower House |
| Hayes, Edmund B., Hall |
| Hayes House |
| Hayground Windmill |
| Hays, George, House |
| Hays, John R., House |
| Hayt's Chapel and Schoolhouse |
| Hazelhurst |
| Hebrew Congregation of Mountaindale Synagogue |
| Hebron District School No. 16 |
| Hebron Valley Grange No. 1103 |
| Heckscher Park |
| Hedge Lawn |
| Hedges, The |
| Heermance Farmhouse |
| Heermance House and Law Office |
| Heintzelman Library |
Data from United States Park Service and Wikidata
