| Named By: | Stephen Czerkas & Ji Qiang in 2002 |
| Time Period: | Middle Jurassic, 164 Ma |
| Location: | Mongolia - Daohugou Formation |
| Size: | 85 centimetre wingspan |
| Diet: | unavailable |
| Fossil(s): | Almost complete articulated specimen with impressions of soft tissue |
| Classification: | | Chordata | Reptilia | Pterosauria | Rhamphorhynchoidea | Rhamphorhynchidae | |
Pterorhynchus was a genus of pterosaur from the mid-Jurassic aged Daohugou Formation of Inner Mongolia, China.
The genus was named in 2002 by Stephen Czerkas and Ji Qiang. The type species is Pterorhynchus wellnhoferi. The genus name is derived from Greek pteron, "wing" and rhynchos, "snout", in reference to the tall crest on the head. The specific name honours the German pterosaur researcher Peter Wellnhofer.
The genus is based on holotype CAGS02-IG-gausa-2/M 608 (earlier DM 608). It was found in Chifeng in the Daohugou Beds. According to Ji Pterorhynchus belongs to the Yanliao Biota from the Haifanggou Formation of the Callovian; Lu Junchang in 2007 ascribed it to the somewhat later Tiaojishan Formation of the same stage.