| Type: | Ortsteil |
| Town: | Gronau |
| Image Coa: | Wappen Betheln.png |
| Coordinates: | 52.1167°N 57°W |
| State: | Niedersachsen |
| District: | Hildesheim |
| Elevation: | 125 |
| Area: | 7.51 |
| Population: | 972 |
| Stand: | 2015-12-31 |
| Postal Code: | 31032 |
| Area Code: | 05182 |
| Licence: | HI |
Betheln is a village and former municipality in the district of Hildesheim, in Lower Saxony, Germany. Since 1 November 2016, it is part of the town of Gronau.