Dionysopithecidae
| Dionysopithecidae Temporal range:  18–17 Million years ago | |
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| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | Primates | 
| Suborder: | Haplorhini | 
| Infraorder: | Simiiformes | 
| Parvorder: | Catarrhini | 
| Superfamily: | †Pliopithecoidea | 
| Family: | †Dionysopithecidae | 
| Genera | |
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Dionysopithecidae is an extinct family of fossil catarrhines and the earliest-known and most primitive members of the Pliopithecoidea superfamily, with fossils in Sihong, China dating to 18–17 million years ago for species Dionysopithecus shuangouensis and Platodontopithecus jianghuaiensis.
A single lower molar found in Ban San Klang in Thailand is similar to those found in Sihong but sufficiently different to be considered a different species, Dionysopithecus orientalis.
They are sometimes treated as a subfamily of Pliopithecidae as 'Dionysopithecinae'.