Sleepy Hollow is a village in the town of Mount Pleasant in Westchester County, New York, United States.

To the south of Sleepy Hollow is the village of Tarrytown, and to the north and east are unincorporated parts of Mount Pleasant.

[3] The village is known internationally through "The Legend of Sleepy Hollow", an 1820 short story by Washington Irving about the local area and its infamous specter, the Headless Horseman.

Owing to "The Legend", as well as the village's roots in early American history and folklore, Sleepy Hollow is considered by some to be one of the "most haunted places in the world".

Starting in 1672, Frederick Philipse began acquiring large parcels of land mainly in today's southern Westchester County.

A pious man, he was architect and financier of the town's Old Dutch Church of Sleepy Hollow, and was said to have built the pulpit with his own hands.

The largest tract of land (about 750 acres (300 ha)) was at the Upper Mills; it passed to numerous owners until 1951, when it was acquired by Sleepy Hollow Restorations.

[10] In the late 1790s, Washington Irving visited Sleepy Hollow with his friend James K. Paulding, a local militiaman who in 1780 had previously helped capture British Major John Andre in what is now known as Patriots Park and thereby foiled the plans of Benedict Arnold during the American Revolutionary War.

The visits of Irving—and the local folklore and ghost tales he heard while there—were immortalised in the story "The Legend of Sleepy Hollow".

Sleepy Hollow has one of the highest proportions of Ecuadorian American residents of any community nationwide, standing at 17.5% as of the 2010 census.

The village is home to the aforementioned Philipsburg Manor House, the Old Dutch Church of Sleepy Hollow, and Patriots Park, all listed as National Historic Landmarks.

Local sites listed in the National Register of Historic Places are the Sleepy Hollow Cemetery; the Edward Harden Mansion, now serving as the administration building for the Public Schools of the Tarrytowns; the Philipse Manor Railroad Station, now repurposed by the Hudson Valley Writers Center; the Tarrytown Light; and the Old Croton Aqueduct, segments of which run through Sleepy Hollow.

Also of note are Kingsland Point Park, allegedly haunted by the spirit of Captain Kidd, an associate of Philipse; Philipse Manor Beach Club; Sleepy Hollow Manor, residential neighborhood on the former estate of renowned explorer and politician John C. Frémont, whose now-updated house still overlooks the Hudson River there; and the Rockefeller State Park Preserve.