| Hassel | |
| Image Coa: | Wappen Hassel (Weser).png |
| Coordinates: | 52.8°N 21°W |
| Image Plan: | Hassel (Weser) in NI.svg |
| State: | Niedersachsen |
| District: | Nienburg/Weser |
| Samtgemeinde: | Grafschaft Hoya |
| Elevation: | 21 |
| Area: | 17.6 |
| Postal Code: | 27324 |
| Area Code: | 04254 |
| Licence: | NI |
| Gemeindeschlüssel: | 03 2 56 010 |
| Mayor: | Heiko Lange |
Hassel (Weser) is a municipality in the district of Nienburg, in Lower Saxony, Germany.