Kentucky - Significance region: Local
| Overby, L. B., House |
| Overman & Schrader Cordage Company |
| Owen, Brackett, House |
| Owen-Gay Farm |
| Owensboro Armory |
| Owensboro Historic Commercial District |
| Owensboro Historic Downtown Commercial District |
| Owingsville Commercial District and Courthouse Square |
| Oxford Historic District |
| Paducah City Hall |
| Paducah Coca-Cola Bottling Plant |
| Paducah Downtown Commercial District |
| Paducah Northside Historic District |
| Page |
| Page-Bell House |
| Paget House and Heigold House Facade |
| Page, William House |
| Paint Lick Commercial District |
| Paint Lick Presbyterian Church |
| Paint Lick School |
| Paintsville City Hall |
| Paintsville Country Club |
| Paintsville High School |
| Paintsville Public Library |
| Paris Railroad Depot |
| Parke-Moore House |
| Parker House |
| Parker, Richard, House |
| Park Hills Historic District |
| Parkland Evangelical Church |
| Parkland Historic District |
| Parkland Junior High School |
| Parks, William, House |
| Passmore, Benjamin, Hotel |
| Passmore, Benjamin, House |
| Passmore, George, House |
| Patterson, Horace, House |
| Patterson House |
| Patterson, Thomas, House |
| Patton, Robert, House |
| Paul Family Complex |
| Payne, Asa, House |
| Payne House |
| Payne House |
| Payne, Lewis, House |
| Payne Mill |
| Payne-Saunders House |
| Peacock House |
| Peacock-Miller House |
| Peak, Henry C., House |
| Peak House |
| Pearce-Wheeler Farm |
| Peaselburg Neighborhood Historic District |
| Peaslee-Gaulbert Warehouse |
| Peebles, Dr. Thomas C., House |
| Peers, Henry Perviance, House |
| Peewee Valley Confederate Cemetery |
| Pell, Joe, Building |
| Pemberton Farm |
| Pence, Adam, House |
| Pendennis Club |
| Pendleton House |
| Pendleton House |
| Pennington Infirmary |
| Penniston House |
| Penn-Marshall Stone House |
| Penn's Store |
| Pennsylvania Run Presbyterian Church |
| Pensacola Park Historic District |
| Peoples Federal Savings and Loan Association |
| People's First National Bank and Trust Company Building |
| Pepper, James E., Distillery |
| Perkins-Daniel House |
| Perkins, Dr. John Milton, House |
| Perkins, Lucien, Farm |
| Perry, William F., Monument |
| Peters House |
| Peterson Avenue Hill |
| Peterson-Dumesnil House |
| Petrie House |
| Pettit Building |
| Phillip's Court District |
| Phillips' Folly |
| Phillips, Josiah, House |
| Phillips, William, House |
| Philpot House |
| Phoenix Hill Historic District |
| Pickett, James A., House |
| Pikeville College Academy Building |
| Pine Grove Voting House No. 5 |
| Pineville Courthouse Square Historic District |
| Pinkerton Hall |
| Pioneer Log Cabin |
| Pioneer Memorial State Park |
| Pisgah Rural Historic District |
| Plank Voting House No. 15 |
| Planter's Tobacco Warehouse |
| Pleasant Grove |
| Pleasant Run Methodist Church |
| Pleasant Vale |
Data from United States Park Service and Wikidata
