New Mexico - Area of significance: Architecture
| Nordhaus, Robert, House |
| North Carmen Historic District |
| North New Town Historic District |
| Nuestra Senora de Luz Church and Cemetery |
| Occidental Life Building |
| Odeon Theater |
| Ojo Caliente Hot Springs Round Barn |
| O'Keeffe, Georgia, Ghost Ranch House |
| O'Keeffe, Georgia, Home and Studio |
| Old Armijo School |
| Old Clovis Post Office |
| Old Fort (LA 1869) |
| Old Hilton Hotel |
| Old Las Vegas Post Office |
| Old Post Office |
| Old Town Residential Historic District |
| Olguin, Jose, Barn-Corral Complex |
| O'Rielly, J. H., House |
| Original Townsite Historic District |
| Orogrande School |
| Ortega, Victor, Cabin |
| Otero's 66 Service |
| Otowi Historic District |
| Our Lady of Mt. Carmel Church |
| Our Lady of Purification Catholic Church |
| Our Lady of Sorrows Church |
| Our Lady of Sorrows Church |
| Our Lady of the Angels School |
| Overlook Site (LA 10732) |
| Pacific Desk Building |
| Paden's Drug Store |
| Palace Hotel |
| Palace of the Governors |
| Parkland Hills Historic District |
| Park Springs Ranch Headquarters Complex |
| Pearce, John, House |
| Pecos National Historical Park |
| Pecos National Historical Park Archaeological and Historic District |
| Pecos National Monument |
| Peñasco High School |
| Perrault, George O., House |
| Pflueger General Merchandise Store and Annex Saloon |
| Picnic Shelter-Sitting Bull Falls Recreation Area |
| Picuris Pueblo |
| Pierce-Fuller House |
| Pig 'n Calf Lunch |
| Pimter-O'Neil Rooming House |
| Pinos Altos Historic District |
| Plaza Blanca Historic District |
| Plaza del Cerro |
| Pointed Butte Ruin (LA 10733) |
| Pond, Florence and John R., House |
| Pond-Kelly House |
| Pork Chop Pass Site (LA 5661) |
| Portillo, Mauricio, House |
| Presbyterian Mission Church |
| President's House |
| Prieta Mesa Site (LA 11251) |
| Pueblito Canyon Ruin (LA 1684) |
| Pueblito East Ruin (LA 55834) |
| Pueblo of Nambe |
| Pueblo of Santo Domingo (Kiua) |
| Pueblo of Tesuque |
| Pyburn House |
| Queen Anne House |
| Railroad Avenue Historic District |
| Rancho Bonito |
| Rancho de Carnue Site |
| Ranchos de Taos Plaza |
| Raton Armory |
| Raton Downtown Historic District |
| Raton Junior-Senior High School |
| Rattlesnake Springs Historic District |
| Raynolds, Sara, Hall |
| Redding, William, House |
| Red River Schoolhouse |
| Redwood Lodge |
| Reeds Peak Lookout Tower |
| Rex Hotel |
| Ridge Top House (LA 6287) |
| Rincon Largo Ruin (LA 2436 and LA 2435) |
| Rincon Rockshelter (LA 55835) |
| Ring Place, The |
| Rio Grande Theatre |
| Ritch Hall |
| Robert, Sallie Chisum, House |
| Robins, Will M., House |
| Rogers Administration Building |
| Romero, Felipe, House |
| Romine Canyon Ruin (LA 55836) |
| Romine Ranch Site (LA 55837) |
| Roosevelt School |
| Rosenwald Building |
| Ross, Dr. Robert M., House |
| Route 66 Rural Historic District: Laguna to McCarty's |
| Rowe Pueblo |
| Roybal, Ignacio, House |
| Ruidoso Lookout Tower |
| Sagrada Familia de Lemitar Church, Los Dulces Nombres |
| Saint Joseph 1930 Hospital |
Data from United States Park Service and Wikidata
