| Water Island | |
| Settlement Type: | Hamlet |
| Pushpin Map: | New York |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location within the state of New York |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Suffolk |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 40.6756°N -73.0292°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 968892 |
Water Island is a hamlet in Suffolk County, New York, on Fire Island in the Town of Brookhaven.
Water Island is a small, extremely private Fire Island beach community of about 50 houses on modest plots of Fire Island real estate. With Davis Park to the East and Barrett Beach to the west, Water Island is afforded a generous space cushion from Fire Island beach civilization – giving it a secluded privacy that is well-appreciated by its residents. Sayville Ferry Service of Sayville, NY provides regularly scheduled ferries to the community.