| Polypodium costatum Kunze, 1834 |
| Polypodium crassifolium L., 1753 |
| Polypodium crassinervatum (Fée) Kiaersk., 1874 |
| Polypodium crenatum Sw., 1788 |
| Polypodium crenatum var. ghiesbreghtii Hook., 1864 |
| Polypodium cryptocarpon Fée, 1857 |
| Polypodium cultratum Willd., 1810 |
| Polypodium cupreolepis A.M. Evans, 1969 |
| Polypodium cyathicola Copel., 1941 |
| Polypodium decumanum Willd., 1810 |
| Polypodium delicatulum M. Martens & Galeotti, 1842 |
| Polypodium deltoideum Liebm., 1849 |
| Polypodium dendricola Jenman, 1894 |
| Polypodium dentatum Forssk., 1775 |
| Polypodium denticulatum Sw., 1788 |
| Polypodium diaphanum Bory, 1804 |
| Polypodium dilatatum Liebm., 1849 |
| Polypodium diplotrichum Mickel & Beitel, 1988 |
| Polypodium dispersum A.M. Evans, 1968 |
| Polypodium dissectum Sw., 1788 |