| Castra of Sânpaul (Harghita County) | |
| Founded: | 2nd century AD |
| Robust Struct Material: | Stone |
| Numeri: | Maurorum S ...[1] |
| Province: | Dacia |
| Admin Unit 1: | Dacia Superior |
| Admin Unit 2: | Dacia Apulensis |
| Coordinates: | 46.1964°N 25.3817°W |
| Map: | Romania |
| Location Town: | Sânpaul |
| Location County: | Harghita |
| Ref:Ro:Lmi: | HR-I-s-B-12710 |
| Ref:Ro:Ran: | 85047.01 |
| Condition: | Ruined |
It was a fort in the Roman province of Dacia.