The Judiaria of Almada was an officially recognized Jewish quarter located within the medieval town of Almada, on the south bank of the Tagus River, opposite Lisbon. Its existence is documented from the 14th century onwards, reflecting the presence of a structured Jewish community integrated into the urban and economic life of the town.

Royal and municipal records from the Late Middle Ages refer to Jews residing in Almada under the legal framework applied to Jewish communities in the Kingdom of Portugal. As in other Portuguese towns, the judiaria constituted a defined residential area, where Jewish families lived and practiced their religion while engaging in trades connected to commerce, crafts, and fiscal administration. Almada’s strategic position on the Tagus estuary facilitated close economic links with Lisbon, reinforcing the relevance of its Jewish population within regional trade networks.

The Jewish presence in Almada ended with the royal decree of 1496, enforced in 1497, which ordered the expulsion or forced conversion of Jews in Portugal under King Manuel I. Following this process, the Judiaria of Almada ceased to exist as a distinct space. Its physical layout was gradually absorbed into the expanding urban fabric, and no identifiable architectural remains of the Jewish quarter are known today.