Pessinus
| Πεσσινούς | |
| Location | Ballıhisar, Eskişehir Province, Turkey | 
|---|---|
| Region | Phrygia | 
| Coordinates | 39°19′53″N 31°35′00″E / 39.331448°N 31.583280°E | 
| Type | Settlement | 
| History | |
| Periods | Hellenistic to Medieval | 
| Site notes | |
| Condition | In ruins | 
Pessinus (Greek: Πεσσινούς or Πισσινούς) was an Ancient city and archbishopric in Asia Minor, a geographical area roughly covering modern Anatolia (Asian Turkey). The site of the city is now the modern Turkish village of Ballıhisar, in a tributary valley of the Sakarya River on the high Anatolian plateau at ca. 950 m above sea level, 13 km from the small town of Sivrihisar. Pessinus remains a Catholic (formerly double) titular see.