Dover Plains is a hamlet and census-designated place (CDP) in Dutchess County, New York, United States.

Metro-North Railroad has a Harlem Line station here, bringing commuters to New York City.

The Dover Plains Military Academy was established in 1880 by Arthur E. Bangs.

This was the same year that the New York and Harlem Railroad extended the line from Croton Falls to Dover Plains.

[4] James Ketcham's grandsons, William and John, were farmers who also had a successful marble business.

Dr. George Marvin Wellman came to Dover Plains in 1869, having served during the war as Ward Master in the hospitals in Washington, D.C.[4] David Maher was born in Ireland and came to Dover Plains in 1862.

Seth Deacon's Dover Plains Review was established in 1908 and ran about a year.

He served on the Board of Education in 1908 when the new Union Free School at Dover was established.

Hall & Ferguson's cold storage plant had a capacity for 15,000 barrels of fruit.

Meetings were held in an empty pre-Revolutionary house built for the Dutch Reformed Church on the site of the later Valley View Cemetery.

Tabor came Dover as a young boy with his father from Rhode Island in 1748, when it was largely uninhabited by European settlers.

His father willed him his landholdings, including all of present-day Dover Plains, upon his death in 1782.

Thomas in turn willed it to his daughter Sally, who married Mahlon Wing.

It was acquired in the late 1970s by the Dover Historical Society, and put into service as a library.

In 2001 the library moved to larger quarters and the Historical Society donated the Tabor-Wing House to the town, which now uses it for offices and a local history room.