| Official Name: | Halcottsville, New York |
| Settlement Type: | Hamlet |
| Pushpin Map: | New York |
| Pushpin Label: | Halcottsville |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | Town |
| Subdivision Name3: | Middletown |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1401 |
| Coordinates: | 42.2083°N -74.6011°W |
| Postal Code Type: | Zip code |
| Postal Code: | 12438 |
| Area Code: | 607 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 952009 |
Halcottsville is a hamlet in the town of Middletown, Delaware County, New York, United States, on the south shore of Wawaka Lake. It was named for John Halcott (1758-1831), a Revolutionary War soldier from Delaware County. He resided with his son Thomas in Halcottsville until his demise.[1] Halcottsville is located on the East Branch Delaware River and New York State Route 30 5.6miles northeast of Margaretville. Halcottsville has a post office with ZIP code 12438.[2] The hamlet has a stop on the excursion Delaware & Ulster Railroad which originates in nearby Arkville and extends north to the village of Roxbury.
The Kelly Round Barn and Old School Baptist Church of Halcottsville are listed on the National Register of Historic Places.