• Paictes Sundevall, 1872 (uncertain)
• Palicites Gemmellaro, 1904 †
• Phacites Blumenbach, 1799 accepted as Nummulites Lamarck, 1801 [Family: Nummulitidae, Class: Globothalamea]
• Phacites Colla in Borson, 1829 † (uncertain) [Family: Fabaceae, Class: Magnoliopsida]
• Phacites Gesner, 1758 † (unaccepted) [Family: , Class: Protozoa (awaiting allocation)]
• Phacites Wahlenberg, 1821 (uncertain) [Family: Echinodermata (awaiting allocation), Class: Echinodermata (awaiting allocation)]
• Piceites H.R. Göppert in F. Wimmer, 1844 † accepted as Pinus Linnaeus, 1753 [Phylum: Tracheophyta]
• Piceites N.A. Bolchovitina, 1956 † (accepted > junior homonym) [Phylum: Sporae dispersae]
• Pilizites Zoological Record accepted as Pilizetes Sellnick, 1937
• Pinites Lindley & W. Hutton, 1832 † [Phylum: Tracheophyta]
• Pinites N.A. Bolchovitina, 1956 † (accepted > junior homonym) [Phylum: Sporae dispersae]
• Placites Mojsisovics, 1896 †
• Planites de Haan, 1825 (unaccepted) [Family: Cephalopoda (awaiting allocation)]
• Planites Herrmannsen, 1847 (uncertain) [Family: Gastropoda (awaiting allocation)]
• Plectes Fischer de Waldheim, 1821 accepted as Pterostichus Bonelli, 1810
• Plectes Fischer von Waldheim, 1823 accepted as Carabus Linnaeus, 1758
• Plectites P.F. Reinsch, 1881 † (uncertain)
• Plicatus Pan & Erwin, 2002 † (uncertain) [Family: Plicatusidae]
• Plicatus Risso, 1816 accepted as Portunus Weber, 1795 [Family: Portunidae]
• Plicifer H. Adams, 1868
• Plocetes Leconte, 1876
• Ploctes Sturm, 1843 accepted as Pterostichus Bonelli, 1810
• Plyctes Fischer, 1981 (uncertain)
• Pnictes Jordan, 1919
• Poacites Schlotheim ex A.T. Brongniart, 1822 † accepted as Cyperites Lindley & W. Hutton, 1832 †
• Poacites Schlotheim ex Ballenstedt, 1822 † (uncertain > nomen dubium)
• Psilites Heer, 1849 (uncertain)
• Psocites Hong, 1992 † (uncertain)
• Punicites C.O. Weber in Wessel & C.O. Weber, 1855 † (uncertain)