| Dynasty: | Justinian Dynasty |
| Birth Date: | Unknown |
| Death Date: | Before 565 |
| Religion: | Eastern Orthodox Church |
| Father: | Justin II |
| Mother: | Sophia |
Justus (Greek, Modern (1453-);: {{lang|grc|Τζάστιν; fl. before 565) was the only recorded son of Roman Emperor Justin II (r. 565–578) and Empress Sophia. Justus most likely died before his father's accession to the throne on 14 November 565.[1]