| Sion | |
| Other Name: | Sheev |
| Settlement Type: | Neighborhood |
| Pushpin Map: | Mumbai |
| Coordinates: | 19.04°N 72.86°W |
| Subdivision Type: | Country |
| Subdivision Name: | India |
| Subdivision Type1: | State |
| Subdivision Name1: | Maharashtra |
| Subdivision Type2: | District |
| Subdivision Name2: | Mumbai City |
| Subdivision Type3: | City |
| Subdivision Name3: | Mumbai |
| Government Type: | Municipal Corporation |
| Governing Body: | Brihanmumbai Municipal Corporation (BMC) |
| Unit Pref: | Metric |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Marathi |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code: | 400022 |
| Area Code: | 022 |
| Iso Code: | IN-MH |
Sion (/ˈsaːjən/; IAST: Śīv [ʃiːʋ]) is a neighbourhood of Mumbai. In the 17th century the village formed the boundary between Mumbai and Salsette Island. The British named it marking the end of the city. The name remained even after Mumbai was joined to the Salsette and extended up to Mulund. One of the local historical places in Sion is a hilltop garden commonly known as Sion Fort or Sheevon Killa in the Marathi language.
In 1543, the Portuguese took possession of the largely uninhabited islands of Bombay, naming it Sião, after a biblical hill in Israel.[1] The Portuguese gave the Jesuit priests the sole ownership of some of these islands. The Jesuits then built a chapel on the hill near the present-day railway station and named it after Mount Zion (Sion) in Jerusalem.
Sion is also a home to many educational institutes, namely: