| Legio XXI Rapax | |
|---|---|
| Active | 31 B.C. – 92 A.D. |
| Country | Roman Empire |
| Type | Infantry assault (some cavalry support) |
| Garrison/HQ | Castra Regina (Regensburg) Castra Vetera (Xanten) Vindonissa Moguntiacum (Mainz) |
| Engagements | Cantabrian Wars Year of the Four Emperors |
| Commanders | |
| Notable commanders | Vitellius |
Legio XXI Rapax ("Predator, Twenty-First Legion") was a legion of the Imperial Roman army. The symbol of the legion is thought to have been a capricorn.[1]