| Settlement Type: | Hamlet |
| Pushpin Map: | New York |
| Pushpin Map Caption: | Location in New York |
| Coordinates: | 42.05°N -104°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Columbia |
| Subdivision Type3: | Town |
| Subdivision Name3: | Ancram |
| Established Title: | Incorporated |
| Established Date: | 1838 |
| Established Title2: | Ceded |
| Established Date2: | January 11th, 1855 |
Boston Corner is a hamlet of the town of Ancram in Columbia County, New York, United States and the town of Northeast in Dutchess County. The District of Boston Corner was incorporated by Massachusetts in 1838 from a tract of unincorporated land west of the town of Mount Washington, Massachusetts,[1] and was ceded from Massachusetts to New York on January 11th, 1855, because its geographical isolation from the rest of Massachusetts made maintaining law and order difficult.
Three railroads—New York Central's Harlem Line, the Poughkeepsie and Eastern Railway, and the Rhinebeck and Connecticut Railroad—once served the hamlet. The New York Central stop was called Boston Corners station. All lines have since been abandoned.
Although the above description implies the Morrissey/Sullivan fight (and resulting riot) was a primary cause for the annexation, those events actually took place on October 12, 1853, twelve weeks after the cession was agreed to by both states but more than a year before Congress made the transfer official.