Oklahoma - Role: Building
| Old Atoka State Bank |
| Old Central, Oklahoma State University |
| Old City Hall, Theater and Masonic Lodge |
| Old North Tower, Central State College |
| Old Plant Office Building, U.S. Gypsum Co. |
| Old Washington County Courthouse |
| Oleson-Crane Building |
| Olustee Public Library and Park |
| Oologah Bank |
| Opera Block |
| Optima Grain Elevator |
| Osage Agency |
| Osage Bank of Fairfax |
| Osage County Courthouse |
| Osler Building |
| Ottawa County Courthouse |
| Overholser House |
| Overstreet House |
| Owl Blacksmith Shop |
| Pachyderm Building for the Lincoln Park Zoo |
| Page Memorial Library |
| Page Soddy |
| Panola High School and Gymnasium |
| Parker, Quanah, Star House |
| Park Etude |
| Parkinson, Amos, House |
| Parkinson, Frederick, House |
| Parkside Elementary School |
| Parriott, Foster B., House |
| Patterson, A. W., House |
| Patterson Hospital |
| Pawhuska Armory |
| Pawnee Armory |
| Pawnee County Courthouse |
| Pawnee Indian Agency |
| Payne County Courthouse |
| Penateka |
| Penick House |
| Peoria Indian School |
| Perry Armory |
| Perryman Ranch Headquarters |
| Petroleum Building |
| Philcade Building |
| Phillips 66 Station #473 |
| Phillips 66 Station No. 1423 |
| Phillips, Frank and Jane, House |
| Phillips, Waite, Mansion |
| Philtower |
| Pierce Block |
| Pilgrim Congregational Church |
| Pioneer Building |
| Pioneer Club |
| Pioneer Plaza |
| Pittsburg County Courthouse |
| Pittsburg School and Gymnasium |
| Plaza Court |
| Pleasant Valley School |
| Pocasset Gymnasium |
| Pollock, Donald, House |
| Ponca City Coca-Cola Bottling Company |
| Ponca City Milling Company Elevator |
| Ponca City Municipal Airport Hangar |
| Ponca City Power Plant |
| Poncan Theatre |
| Pond Creek Masonic Lodge #125 |
| Pontotoc County Courthouse |
| Post Adjutant's Office |
| Post Blacksmith Shop |
| Post Office, Courthouse, and Federal Office Building |
| Poteau Community Building |
| Poteau School Gymnasium-Auditorium |
| Pottawatomie County Courthouse |
| Prague City Hall and Jail |
| Prairie House |
| Presbyterian Church |
| President's House, University of Oklahoma |
| Price Tower |
| Provine Service Station |
| Pruett House |
| Public Library of Enid and Garfield County |
| Public Service of Oklahoma Building |
| Pyeatt's, J. J., General Store |
| Railroad Exchange Building |
| Ralls, Joe, House |
| Ralston Opera House |
| Ramona Theatre |
| Randall Tire Company |
| Red Bird City Hall |
| Red Cross Canteen |
| Reifsnyder, Josephine, Lustron House |
| Rein School |
| Renfrow Building |
| Renfrow House |
| Reynolds, James E., House |
| Richardson Building |
| Richardson, Edward, Building |
| Riverside Studio |
| Riviera Courts-Motel |
| Robb, Andrew W., House |
| Roberta School Campus |
Data from United States Park Service and Wikidata
