| Sinopa 
 Temporal range:  Early to Middle Eocene | 
|  | 
| Sinopa major skeleton | 
|  | 
| Sinopa rapax skeleton | 
|
| Scientific classification | 
| Domain: | Eukaryota | 
 
| Kingdom: | Animalia | 
 
| Phylum: | Chordata | 
 
| Class: | Mammalia | 
 
| Order: | †Hyaenodonta | 
 
| Clade: | †Sinopinae | 
 
| Genus: | †Sinopa Leidy, 1871
 | 
|
|
| Type species | 
| †Sinopa rapax 
 Leidy, 1871 | 
| Species | 
| †S. jilinia (Morlo, 2014)†S. lania (Matthew, 1909)†S. longipes (Peterson, 1919)†S. major (Wortman, 1902)†S. minor (Wortman, 1902)†S. piercei (Bown, 1982)†S. pungens (Cope, 1872)†S. rapax (Leidy, 1871)†S. sp. A [AMNH FM 11538] (Matthew, 1906)
 | 
| Synonyms | 
| 
Mimocyon (Peterson, 1919)
Proviverroides (Bown, 1982)
Stypolophus (Cope, 1872)
Triacodon (Marsh, 1871)
 
Miacis longipes (Simpson, 1945)
Mimocyon longipes (Peterson, 1919)
Proviverra longipes (Dawson, 1980)
Proviverra grangeri (Van Valen, 1965)
Proviverra major (Gustafson, 1986)
Sinopa grangeri (Matthew, 1906)
Proviverra minor (Van Valen, 1965)
Proviverroides piercei (Bown, 1982)
Proviverra pungens (Van Valen, 1965)
Stypolophus pungens (Cope, 1872)
Proviverra rapax (Van Valen, 1965)
Sinopa aculeatus (Cope, 1871)
Stypolophus aculeatus (Cope, 1872)
Stypolophus rapax
Triacodon aculeatus (Cope, 1872)
Triacodon fallax (Marsh, 1872)
 | 
Sinopa ("swift fox") is an extinct genus of placental mammals from extinct clade Sinopinae within extinct order Hyaenodonta, that lived in North America and Asia from the early to middle Eocene.