The Hechal Yehuda Synagogue (Hebrew: בית הכנסת היכל יהודה, romanized: Beit haKnesset Hechal Yehuda), also commonly known as the Recanati synagogue (Hebrew: בית הכנסת רקנטי, romanized: Beit haKnesset Recanati), often referred to as the Seashell Synagogue (Hebrew: בית הכנסת קונכית, romanized: Beit haKnesset Konkit, Greek: Συναγωγή Κοχύλι) because of its unusual shape resembling a seashell,[1] is an Orthodox Jewish congregation and synagogue, located on Menahem ben Saruq street, in the city centre of Tel Aviv, Israel.

[2][3] The design is inspired by the seashells on the shores of the Greek city of Thessaloniki, which is the hometown of the wealthy Recanati family and the synagogue's architect, Yitzhak Toledano.

[6] The north bare concrete facade is decorated with bas-reliefs of traditional Jewish motifs and symbols, made by artist Yechezkel Kimchi, while the coloured-glass windows, that present motifs from Jewish holidays, were made by the local artist Josef Shealtiel.

[1] The shell-like design creates an internal space which enables the congregation to see and to hear from wherever they are seated.

[7] The synagogue, incorporating two floors, has room for 600 persons, 400 men and 200 women in separated galleries.