Kloster St. Johannis, Cistercian monastery in Eppendorf, Hamburg, Germany

Kloster St. Johannis is an Evangelical women's convent (Evangelisches Damenstift) at Heilwigstraße 162 in Hamburg's Eppendorf district. The residential complex was built between 1912 and 1914 by architects Richard Kahl and Ludwig Endresen in a large garden on the Alster. It provides 69 self-contained flats for single women over 60, and its grounds are bordered by the street named after the monastery's founder in 1870.

The monastery was founded in 1246 by Countess Heilwig, making it one of the oldest religious communities in the region. In the early 20th century, the community moved to its present site in Eppendorf, where the current buildings were put up.

The community is led by a Domina, with a board approved by the Senate and the city's two mayors as patrons, a structure dating from the Reformation. The street name Heilwigstraße, given in 1870, honours the founder Heilwig von der Lippe, while Frauenthal and Jungfrauenthal recall the monastery's Latin name In valle virginum.

The interior of the complex is private and accessible only to residents and invited guests, so a visit is best planned in advance if you wish to enter. The exterior and the surrounding street give a clear view of the buildings, and the local area in Eppendorf is easy to reach on foot or by public transport.

The Grand Convent that governs the monastery is made up of the two patrons — Hamburg's First and Second Mayors — the three board members and the Domina, the community's head. This structure has been in place since the Reformation, and the board itself serves unpaid and needs Senate approval.