- Location: Kala Ghoda, Mumbai, Maharashtra
- Timings: Mon: 9:00 am to 5:00 pm | Other days: 10:30 am to 5:30 pm
- Closed: Friday and Saturday
- Rite: Sephardic
- Organizational Status: Active
- Affiliation: Orthodox Judaism
- Architects: Gostling & Morris
- Construction Completed: 1884
The Knesset Eliyahoo, also Knesset Eliyahu, is an Orthodox Jewish synagogue. It is located in downtown Mumbai, India and is the second oldest Sephardic synagogue in Mumbai city.
Jacob Elias Sassoon established this building in 1884 by Jacob Elias Sassoon who was the son of Eliyahoo David Sassoon and grandson of David Sassoon. David Sassoon had immigrated from Baghdad to India in 1832 due to persecution. He then settled in Mumbai (then known as Bombay). It is maintained by the Jacob Sassoon Trust. The building’s importance is attributed to the Jewish, Indian and English colonial traditions.
The British architectural firm Gostling & Morris of Bombay had designed this building. The basement are of the edifice is built in stone masonry and the superstructure is built in brick masonry. The exterior facade of the synagogue is painted in turquoise color. The sanctuary within the interior of the building is in western direction, towards Jerusalem.