| Coordinates: | 53.3167°N 12.15°W |
| Image Plan: | Marienfließ in PR.png |
| State: | Brandenburg |
| District: | Prignitz |
| Amt: | Meyenburg |
| Elevation: | 68 |
| Area: | 76.89 |
| Postal Code: | 16945, 16949 |
| Area Code: | 033968, 033969 |
| Licence: | PR |
| Gemeindeschlüssel: | 12 0 70 266 |
| Website: | www.amtmeyenburg.de |
| Mayor: | Burkhard Freese[1] |
| Leader Term: | 2024 - 29 |
Marienfließ is a municipality in the Prignitz district, in Brandenburg, Germany.