P
- Alfred Browning Parker
- John B. Parkin
- John and Donald Parkinson
- André Parmentier
- Alexander Parris
- Samuel Parsons
- Peabody and Stearns
- Arthur Peabody
- Robert Swain Peabody
- I. M. Pei
- César Pelli
- William Pereira
- Dwight H. Perkins
- Perkins and Will
- William Wesley Peters
- Timothy L. Pflueger
- Campion Platt
- Charles A. Platt
- John Russell Pope
- John Portman
- Antoine Predock
- Benjamin Polk
- Willis Polk
- James Polshek
- Cyrus Kinne Porter
- George Browne Post
- Bruce Price
- Will Price
- William Gray Purcell
Read more about this topic: List Of United States Architects