East Williston
- County:
- Nassau County
- County Seat:
- No
- Area (mi²):
- 0.569
- State:
- New York
East Williston is a village located in Nassau County, New York. East Williston has a 2026 population of 2,613. East Williston is currently growing at a rate of 0.19% annually but its population has decreased by -0.99% since the most recent census, which recorded a population of 2,639 in 2020.