Hillburn, originally called "Woodburn" and incorporated in 1893, is a village in the town of Ramapo, Rockland County, New York, United States.

It is located north of Suffern, east of Orange County, south of Viola, and west of Montebello.

[2] In addition to later European-American migrants, the area was settled early by descendants of Lenape and other remnant groups, who eventually intermarried with Afro-Dutch and other ethnicities after the Revolutionary War.

These multiracial descendants were recognized in 1980 by the state as the Ramapough Mountain Indians; they also have centers of population in Mahwah and Ringwood, New Jersey, which were areas of frontier in the eighteenth and early nineteenth centuries.

In 2010, the state legislature designated May 17 as Thurgood Marshall Day in honor of his work in civil rights.

Mixed-race children who lived in the town of Ramapo attended the Brook School in Hillburn, a wood structure that did not have a library, indoor bathrooms or gymnasium.

The Rockland African Diaspora Heritage Center in Pomona, New York, has an exhibit of artifacts and photographs loaned by a student who attended the Brook School.