Mayor Synagogue
The former synagogue, pictured right, in 2009
Religion
Affiliation	Judaism (former)
Rite	Nusach Sefard
Ecclesiastical or organisational status	Synagogue (19th century–c. 1923) Profane use (since c. 1923)
Status	Inactive (as a synagogue); Repurposed
Location
Location	Hasköy Avenue, Hasköy, Beyoğlu, Istanbul, Istanbul Province
Country	Turkey
Location of the former synagogue in Istanbul
Geographic coordinates	41°02′23″N 28°57′05″E / 41.03972°N 28.95139°E / 41.03972; 28.95139
Architecture
Type	Synagogue architecture
Style	Byzantine
Completed	19th century
Specifications
Dome(s)	One
Materials	Stone
[1]

The Mayor Synagogue, also known as the Majorka Synagogue,^[1] is a former Jewish congregation and synagogue, located on Hasköy Avenue, in the Hasköy district of Beyoğlu, Istanbul, in the Istanbul Province of Turkey. Completed in the 19th century, the building was used as a synagogue until 1923.

According to historian Lorans Tanatar Baruh, the synagogue was built in the Byzantine era and was called Mayor because it was the largest in the neighborhood.^[2] Another historian claims the synagogue was built 300 to 500 years ago by Jews from Majorca.^[2][3]

The synagogue building is now used as storage space, workshops, and a billiard parlor. In September 2009, artist Serge Spitzer chose this site for his installation Molecular Istanbul.^[3][4]

• History of the Jews in Turkey
• List of synagogues in Turkey

• "Serge Spitzer: Molecular Istanbul, Mayor Synagogue, Istanbul" (Video includes many interior and exterior views of the structure.). VernissageTV. September 28, 2009.
• "New Publication". Serge Spitzer / Molecular (ISTANBUL).
• "Home page". Reality Models.