| Official Name: | Sammonsville, New York |
| Settlement Type: | Hamlet |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Fulton |
| Subdivision Type3: | Town |
| Subdivision Name3: | Johnstown |
| Pushpin Map: | New York |
| Pushpin Map Caption: | Location within the state of New York |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 472 |
| Elevation M: | 144 |
| Coordinates: | 42.9884°N -74.4335°W[1] |
| Postal Code Type: | ZIP code |
| Area Code: | 518 |
Sammonsville is a hamlet in the Town of Johnstown in Fulton County, New York, United States. It is located by the southern town line on New York State Route 334 (NY 334).