| Hagen | |
| Image Coa: | DEU Hagen (Holstein) COA.svg |
| Coordinates: | 53.95°N 59°W |
| Image Plan: | Hagen in SE.svg |
| State: | Schleswig-Holstein |
| District: | Segeberg |
| Amt: | Bad Bramstedt-Land |
| Elevation: | 23 |
| Area: | 8.2 |
| Postal Code: | 24576 |
| Area Code: | 04192 |
| Licence: | SE |
| Gemeindeschlüssel: | 01 0 60 031 |
| Website: | www.amt-bad- bramstedt-land.de |
| Mayor: | Kay Holm |
Hagen is a municipality in the district of Segeberg, in Schleswig-Holstein, Germany.