| Mariensee | |
| Type: | Ortsteil |
| Town: | Neustadt am Rübenberge |
| Coordinates: | 52.5631°N 9.4867°W |
| Image Coa: | Wappen Esperke.png |
| State: | Lower Saxony |
| Elevation: | 41 |
| Area: | 9.52 |
| Population: | 1095 |
| Population As Of: | 2021 |
| Postal Code: | 31535 |
| Area Code: | 05034 |
| District: | Hanover |
Mariensee is a village in Lower Saxony, Germany, and a borough (German: Stadtteil,) of Neustadt am Rübenberge. Its population was 1195 in April 2021.[1]
Originally called Catenhusen, it became Mariensee when, according to legend, a statue of the Virgin Mary washing up during a flood of the Leine was considered a divine sign. The first known written record of the new name dates to 1207, albeit in, as was customary at the time, Latin as Latin: lacus sancte Marie . Mariensee convent founded around 1213–14 still dominates Mariensee architecturally.