| Native Name: | Kanton Säntis |
| Conventional Long Name: | Canton of Säntis |
| Common Name: | Säntis |
| Subdivision: | Canton |
| Nation: | Helvetic Republic |
| Status Text: | Canton of the Helvetic Republic |
| Year Start: | 1798 |
| Year End: | 1803 |
| Event Start: | Helv. Rep. established |
| Event End: | Helv. Rep. disestablished |
| Date End: | February 19, 1803 |
| P1: | Imperial Abbey of St. Gall |
| Flag P1: | Coa Abbey Saint Gall.svg |
| P2: | Imperial City of St. Gallen |
| Flag P2: | Coa stgallen.svg |
| P3: | Vogtei of Rheintal |
| Flag P3: | Wappen Vogtei Rheintalsvg.svg |
| P4: | Appenzell Innerrhoden |
| Flag P4: | AppenzellRI-coat of arms.svg |
| P5: | Appenzell Ausserrhoden |
| Flag P5: | AppenzellRE-coat of arms.svg |
| S1: | Canton of St. Gallen |
| Flag S1: | St.Gallen-coat of arms.svg |
| S2: | Appenzell Innerrhoden |
| Flag S2: | AppenzellRI-coat of arms.svg |
| S3: | Appenzell Ausserrhoden |
| Flag S3: | AppenzellRE-coat of arms.svg |
| Image Map Caption: | Cantons of Säntis (orange) and Linth (green) |
| Capital: | St. Gallen |
| Coordinates: | 47.4231°N 9.3767°W |
Säntis was the name of a canton of the Helvetic Republic from 1798 to 1803, consisting of the territory of St. Gallen, Appenzell, and Rheintal. Its capital was St. Gallen.[1]