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| Mahim Bay | |
|---|---|
 Mahim bay in the background, Bandra in the foreground | |
  Mahim Bay Location of Mahim Bay in Mumbai, India | |
| Coordinates | 19°01′48″N 72°49′30″E / 19.03°N 72.825°E |
| Ocean/sea sources | Arabian Sea |
| Basin countries | India |
| Settlements | Mumbai |
Mahim Bay is a picturesque bay situated in the Arabian Sea, along the western coast of India. It is located in the southern part of Mumbai, the capital city of the Indian state of Maharashtra.[1] The bay was named after the islands of Mahim and Salsette were merged in the early 19th century. The Mithi River drains into Mahim Creek which drains into the Bay, and forms the border between the Mumbai city (Churchgate to Mahim) and its Suburbs (Bandra to Dahisar).
During the colonial era, the Portuguese built a watch tower called Castella de Aguada on the northern side. Later, the British built the Worli Fort to the south and Mahim Fort near the creek to defend the Seven Islands of Bombay against attacks by the Portuguese and the Marathas. The bay is an integral part of Mumbai's coastline and holds significant historical, geographical, and ecological importance.