| Castle of Riba de Santiuste | |
| Native Name: | Castillo de Riba de Santiuste |
| Native Language: | Spanish |
| Coordinates: | 41.1969°N -2.7091°W |
| Location: | Sigüenza, Spain |
| Designation1: | Spain |
| Designation1 Offname: | Castillo de Riba de Santiuste |
| Designation1 Type: | Non-movable |
| Designation1 Criteria: | Monument |
| Designation1 Date: | 1992 |
| Designation1 Number: | RI-51-0007286 |
The Castle of Riba de Santiuste (Spanish: Castillo de Riba de Santiuste) is a castle located in Sigüenza, Spain. It was declared Bien de Interés Cultural in 1992.[1] The castle was rebuilt twice: in 15th century for the first time and in 19th century after it had been partially destroyed. [2]