| Official Name: | Greigsville, New York |
| Pushpin Map: | New York#USA |
| Pushpin Label: | Greigsville |
| Pushpin Label Position: | top |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Livingston |
| Subdivision Type3: | Town |
| Subdivision Name3: | York |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.84 |
| Area Land Km2: | 1.84 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.71 |
| Area Land Sq Mi: | 0.71 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 191 |
| Population Density Km2: | 103.80 |
| Population Density Sq Mi: | 269.01 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 751 |
| Coordinates: | 42.8306°N -77.8969°W |
| Area Code: | 585 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 951801 |
| Blank1 Name: | FIPS code |
| Blank1 Info: | 36-30807 |
Greigsville is a hamlet and census-designated place (CDP) in the town of York, Livingston County, New York, United States. Its population was 209 as of the 2010 census.[2] The community is located at the intersection of New York State Route 36 and New York State Route 63.
Greigsville is in northwestern Livingston County, in the southern part of the town of York. It is bordered to the south by Wadsworth, and Retsof is less than 1miles to the east. State Route 36 leads north 3miles to York hamlet and south 4miles to Leicester, while SR 63 leads southeast to Geneseo, the Livingston county seat, and northwest to Batavia.
According to the U.S. Census Bureau, the Greigsville CDP has an area of, all land.[3] The northeast border of the CDP follows Bidwells Creek, an eastward-flowing tributary of the Genesee River.