| Name | Build year | Nationality | Bilde | Loss during WW2 |
|---|---|---|---|---|
| T/T Patrick. J. Hurley | 1941 | USA | Torpedoed, 1942-9-13 | |
| D/S Paul Hamilton | 1942 | USA | Attacked from air, 1944-4-20 | |
| D/S Paul Hamilton Hayne | 1942 | USA | ||
| T/T Paulus Hook | 1944 | USA | ||
| D/S Pennsylvania | 1920 | USA | ||
| D/S Pere Marquette | 1943 | USA | ||
| T/T T2 Perote | 1943 | USA | ||
| D/S Peter De Smet | 1943 | USA | ||
| D/S Peter Skene Ogden | 1942 | USA | Torpedoed, 1944-2-23 | |
| D/S Philander C. Knox | 1943 | USA | ||
| D/S Philip C. Shera | 1943 | USA | ||
| D/S Pierre Gibault | 1943 | USA | ||
| M/S Pigeon Point | 1943 | USA | ||
| D/S Pocahontas | 1942 | USA | ||
| D/S Point Ancha | 1919 | USA | Torpedoed, 1941-6-25 | |
| D/S Point Lobos | 1919 | USA | ||
| M/S Point Loma | 1943 | USA | ||
| D/T Pomona | 1920 | USA | ||
| D/T Ponca City | 1919 | USA | ||
| D/S Portmar | 1919 | USA | Torpedoed, 1943-6-16 | |
| D/S Port Saunders | 1904 | USA | ||
| Presidential yacht Potomac USS | 1934 | USA | ||
| T/S President Coolidge | 1931 | USA | Sunk by mine, 1942-10-25 | |
| T/S President Harding | 1921 | USA | Attacked from air, 1940-5-14 | |
| T/S President Monroe | 1940 | USA |