| Eusebia | |
|---|---|
&sq=&lang=&file=File:Eusebia,_wife_of_Constantius_II.png) Imaginary portrait (1615) | |
| Roman empress | |
| Tenure | c. 353–360 |
| Born | Thessalonica |
| Died | before 361 |
| Spouse | Constantius II |
| Dynasty | Constantinian |
| Father | Eusebius (probably) |
| Religion | Arian Christianity |
Eusebia (Greek: Εύσεβία, died before 361) was Roman empress as the second wife of Roman emperor Constantius II. The main sources for the knowledge about her life are Julian's panegyric "Speech of Thanks to the Empress Eusebia", as well as several remarks by the historian Ammianus Marcellinus.