Oklahoma - Role: Building
| Medicine Park Hotel and Annex |
| Meeker Town Hall |
| Meers Mining Camp |
| Meloy House |
| Mendenhall's Bath House |
| Mennoville Mennonite Church |
| Mensch, William Alfred, Building |
| Merchants National Bank Building |
| Merchants Transfer and Storage |
| Mesta Park |
| Methodist Church of Marshall |
| Methodist Episcopal Church, South |
| Methodist Episcopal Church, South |
| Meyer, Maurice, Barracks |
| Miami Marathon Oil Company Service Station |
| Mid-Continent Life Building |
| Mideke Supply Building |
| Midlothian School |
| Milk Bottle Grocery |
| Miller, George and Margaret, House |
| Miller-Jackson Building |
| Miller-Washington School |
| Mincks-Adams Hotel |
| Minco Armory |
| Mine Rescue Station |
| Mitchell Hall |
| M.K. and T. Depot in Laverne |
| Modoc Mission Church and Cemetery |
| Monhollow Artificial Stone House |
| Montgomery-Linam House |
| Moore-Lindsay House |
| Moore Manor |
| Moore Public School Building |
| Moore-Settle House |
| Morris House |
| Morrison Baptist Church |
| Morrow Home Place |
| Moss School Gymnasium |
| Mount Zion Baptist Church |
| Mouser Woodframe Grain Elevator/Collingwood Elevator |
| Mulhall United Methodist Church |
| Mullendore Mansion |
| Mulvey Mercantile |
| Municipal Auditorium |
| Murphy, George A., House |
| Murphy House |
| Murray County Courthouse |
| Murrell Home |
| Muskogee County Courthouse |
| Muskogee Municipal Building |
| Mutual Savings and Loan Association Building |
| Narcissa D-X Gas Station |
| Nash-Swindler House |
| National Guard Statistical Building |
| New Hope Baptist Church |
| Newkirk Water Purification Plant |
| Newport Hotel and Restaurant |
| New State School |
| Nickel Ensor McClure House |
| Nickles Machine Shop |
| Nine Tribes Tower |
| Noble County Courthouse |
| Noble Hotel |
| Norman Public Library |
| Northside Elementary School |
| Norton-Johnson Buick Company |
| Nowata County Courthouse |
| Nuckolls House |
| Nuyaka Mission |
| Oakland School |
| Officer's Quarters |
| Okeene Flour Mill |
| Okeene Service Station |
| Okemah Armory |
| Okfuskee County Courthouse |
| Oklahoma A & M College Agronomy Barn and Seed House |
| Oklahoma A&M College Dairy Barn |
| Oklahoma City Ford Motor Company Assembly Plant |
| Oklahoma City Municipal Building |
| Oklahoma City Schools Administration Building |
| Oklahoma County Courthouse |
| Oklahoma County Home for Girls |
| Oklahoma Gas and Electric Company Building |
| Oklahoma Hardware Building |
| Oklahoma Historical Society Building |
| Oklahoma National Guard Armory |
| Oklahoma Natural Gas Company Building |
| Oklahoma, New Mexico and Pacific Railroad Depot |
| Oklahoma Odd Fellows Home at Checotah |
| Oklahoma Presbyterian College |
| Oklahoma Publishing Company Building |
| Oklahoma State Bank Building |
| Oklahoma State Capitol |
| OKLA Theater |
| Okmulgee Armory |
| Okmulgee Colored Hospital |
| Okmulgee County Courthouse |
| Okmulgee Public Library |
| Okmulgee Stock Pavilion |
| Oktaha School |
Data from United States Park Service and Wikidata
