Nidda or Niddah could refer to: * Niddah, a concept in Judaism, name for any woman during menstruation, or a woman who has menstruated and not yet completed the associated requirement of immersion in a mikveh (ritual bath) *

Niddah (Talmud) Niddah (Hebrew: ) is a '' masekhet'' or tractate of the Mishnah and the Talmud, and is part of the order of Tohorot. The content of the tractate primarily deals with the legal provisions related to Halakha of Niddah. In Judaism, a niddah is a woma ...

, a tractate in the Mishna and Talmud, on the Halakha of Niddah in the order of Mishnah '' Tohorot''. *

Nidda, Hesse Nidda is a town in the district Wetterau, in Hesse, Germany. It is situated on the Nidda river, approximately northeast of Frankfurt am Main. Division of the town The municipality consists of the districts Unter-Widdersheim, Ober-Widdersheim, B ...

, a town in Germany *

County of Nidda The County of Nidda (german: Grafschaft Nidda was a small county of the Holy Roman Empire centred on the city of Nidda, Germany, Nidda in modern Wetteraukreis, Hesse. It was located on the northern edge of the Wetterau river valley and consisted o ...

, medieval polity in Germany * Nidda (river), a river in Germany *

, a state of the Holy Roman Empire from 1104-1450

See also