The Portuguese Synagogue, also known as the Esnoga (Ladino: אסנוגה), or Snoge, is a late 17th-century Sephardic synagogue in Amsterdam, completed in 1675. Esnoga is the Ladino word for synagogue. The Amsterdam Sephardic community was one of the largest and richest Jewish communities in Europe during the Dutch Golden Age, and their very large synagogue reflected this. In January 2012 Israeli Prime-Minister Benjamin Netanyahu described this as "one of the most beautiful synagogues I have ever seen." The synagogue is a popular tourist attraction.
The Jews were expelled en masse from Spain in 1492 by the Alhambra decree. Many who fled to Portugal were forced to convert to Catholicism in 1496, while Jews who did not convert were expelled from Portugal in 1497. For hundreds of years, the Inquisition continued to investigate the converts and their descendants in Spain and Portugal on suspicions that in secret they still practiced Judaism (see Crypto-Judaism, Marrano).