| Piper emarginellum Sw. ex Wikstr., 1828 |
| Piper epigynium C. DC., 1872 |
| Piper eriopodon (Miq.) C. DC., 1869 |
| Piper fallens Trel., 1929 |
| Piper fasciculatum Ruiz & Pav., 1798 |
| Piper fenianum Trel., 1926 |
| Piper fimbrirachium Callejas, 2020 |
| Piper fimbriulatum C. DC., 1892 |
| Piper fischerianum C. DC., 1869 |
| Piper flavidum C. DC., 1894 |
| Piper flavirameum C. DC., 1920 |
| Piper fortunaense Tebbs, 1990 |
| Piper fortunyoanum Trel., 1940 |
| Piper fraguanum Trel., 1929 |
| Piper friedrichsthalii C. DC., 1869 |
| Piper galeottianum M. Martens & Galeotti, 1843 |
| Piper garagaranum C. DC., 1920 |
| Piper gaumeri Trel., 1929 |
| Piper geniculatum Link, 1820 |
| Piper gibbosum C. DC., 1892 |