Menachem Porush (Hebrew: מנחם פרוש, 2 April 1916 – 22 February 2010) was an Israeli politician who served as a member of the Knesset for Agudat Yisrael and its alliances between 1959 and 1975, and again from 1977 until 1994.

In 1932 he was expelled from Etz Chaim for unseemly conduct at a Purim party, where he allegedly slighted chief rabbi Abraham Isaac Kook.

Between 1969 and 1974 he also served as deputy head of the Jerusalem City Council, and in 1973 he established Kiryat HaYeled, an educational center for Haredi children.

The same year, Porush defied the Gerrer Rebbe and Council of Torah Sages, who demanded he give up his Knesset seat.

His son, Meir Porush, followed him into politics as a member of the Jerusalem City Council and the Knesset for United Torah Judaism.