White Plains is a city in Westchester County, New York, United States. An inner suburb of New York City, it is the county seat and commercial hub of Westchester. White Plains is located in south-central Westchester, with its downtown (Mamaroneck Avenue) 25 miles north of Midtown Manhattan.

At the time of the Dutch settlement of Manhattan in the early 17th century, the region had been used as farmland by the Weckquaeskeck tribe, a Wappinger people, and was called "Quarropas". To early traders it was known as "the White Plains", either from the groves of white balsam which are said to have covered it, or from the heavy mist that local tradition suggests hovered over the swamplands near the Bronx River. In 1758, White Plains became the seat of Westchester County when the colonial government for the county left West Chester, which was located in what is now the northern part of the borough of the Bronx, in New York City. The unincorporated village remained part of the Town of Rye until 1788 when the town of White Plains was created.