- National Republican Congressional Committee2
- National Rifle Association of America2
- Nunn, Sam2
- Oakar, Mary Rose2
- Oberstar, James L. (James Louis), 1934-20142
- Omori, Morio2
- Ottawa Indians2
- Paschall and Associates2
- Payne and Company, Inc.2
- Perkins, Milo, 1900-19722
- Perot, Ross, 1930-20192
- Petersen, Howard C. (Howard Charles), 1910-19952
- Petraeus, David Howell2
- Post Production Services, Inc.2
- Potawatomi Indians2
- Prentice-Hall personnel management series2
- Project Head Start2
- R and R Advertising2
- RTV Productions2
- Rabin, Yitzhak, 1922-19952
