| Official Name: | Jefferson, New York |
| Settlement Type: | Census-designated place |
| Pushpin Map: | New York#USA |
| Pushpin Label: | Jefferson |
| Pushpin Label Position: | left |
| Coordinates: | 42.4811°N -74.6097°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Schoharie |
| Subdivision Type3: | Town |
| Subdivision Name3: | Jefferson |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 1.07 |
| Area Land Sq Mi: | 1.06 |
| Area Water Sq Mi: | 0.00 |
| Area Total Km2: | 2.77 |
| Area Land Km2: | 2.76 |
| Area Water Km2: | 0.01 |
| Population As Of: | 2020 |
| Population Density Km2: | 43.85 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1873 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 12093 |
| Area Code: | 607 |
| Blank Name: | FIPS code |
| Blank Info: | 36-38429 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2806959 |
| Population Total: | 121 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 113.62 |
Jefferson is the primary hamlet and a census-designated place (CDP) within the town of Jefferson in Schoharie County, New York, United States. It was first listed as a CDP prior to the 2020 census.
Jefferson is in southwestern Schoharie County, in the center of the town of Jefferson. New York State Route 10 passes through the community, leading north to Richmondville and south 8miles to Stamford.