We have so far registered 4,509 shipyards
| Name | | Porthleven, UK |
| Portland, Maine, USA |
| Portland S.B. Co., Troon, Scotland |
| Portsmouth |
| Portsmouth, Me. USA |
| Portsmouth, New Hamphsire, USA |
| P.O. SevMash. Predpriyatiye, Severodvinsk |
| Pottemakerstranden, Stavanger |
| Potts & Son, St.John, New Brunswick, Canada |
| Poulsen & Jensen, Bregvinge, Svendborg, Danmark |
| P.Ph. Stuhrs Maskin & Skipsbyggeri, Aalborg, Danmark |
| P. & P. Stack, Williamsburg, USA |
| P. R. Crichton, Kingsport, Nova Scotia, Canada |
| President Marine Ltd., Singapore |
| Preston Iron Shipbuilding Co., Preston, England |
| Preussen, Tyskland |
| Prince Edvard Island, Canada |
| Prince Edward Island, Canada |
| Prince Rupert Dry Dock & Shipyard, Prince Rupert, British Columbia, Canada |
| Promek Boats A/S, Smøla |
| P. Sager, Bremen, Tyskland |
| P. Sager, Vegesack, Tyskland |
| P.S. Blehr, Brevik |
| P. Smit, jun, Slikkerveer, Nederland |
| P. Svendsen, Gilhus, Drammen |
