The Paradesi Synagogue is the oldest active synagogue in the located in Kochi, Kerala, in South India. It was built in 1568 by the Malabar Yehudan people or Kochi Jewish community in the Kingdom of Kochi.

Paradesi is a word used in several Indian languages, and the literal meaning of the term is "foreigners", applied to the synagogue because it was historically used by "White Jews", a mixture of Jews from Cranganore, the Middle East, and European exiles. It is also referred to as the Kochi Jewish Synagogue or the Mattancherry Synagogue.

The synagogue is located in the quarter of Old Kochi known as Jew Town, and is the only one of the seven synagogues in the area still in use. The complex has four buildings. It was built adjacent to the Mattancherry Palace temple on the land gifted to the Malabari Yehuden community by the Raja of Kochi, Rama Varma. The Mattancherry Palace temple and the Mattancherry synagogue share a common wall.