| Type: | Ortsteil |
| Town: | Seesen |
| Coordinates: | 51.8931°N 10.1783°W |
| State: | Lower Saxony |
| District: | Goslar |
| Population: | 1031 |
| Postal Code: | 38723 |
| Area Code: | 05381 |
| Licence: | GS |
| Mayor: | Detlef Gelbe |
| Party: | SPD |
Bornhausen is next to Rhüden the northernmost part of the town of Seesen am Harz in the district of Goslar, in Lower Saxony. It has an approximate population of 1030.
The first time mentioned in a document 973 Anno Domini.