| Named By: | Rupert Wild in 1983 |
| Time Period: | Late Triassic, 228 Ma |
| Location: | Italy, Preone Valley |
| Size: | 45 centimetre wingspan |
| Diet: | unavailable |
| Fossil(s): | 2 confirmed individuals plus a possible specimen preserved as a fish pellet |
| Classification: | | Chordata | Reptilia | Pterosauria | Rhamphorhynchoidea | Rhamphorhynchidae | |
Preondactylus is a genus of long-tailed pterosaurs from the Late Triassic (late Carnian or early Norian age, about 228 million years ago) that inhabited what is now Italy. It contains a single known species, Preondactylus buffarinii, which was discovered by Nando Buffarini in 1982 near Udine in the Preone valley of the Italian Alps.