Sleepy Hollow, Residential neighborhood in Chino Hills, United States.

Sleepy Hollow is a neighborhood in Carbon Canyon, within the Chino Hills of San Bernardino County; its western edge borders Brea in Orange County. It holds about 130 houses and roughly 300 to 400 residents, among them small 1920s cabin lots, some greatly altered, along Carbon Canyon Road (State Route 142).

Cleve and Elizabeth Purington founded the settlement in the 1920s, developing 80 acres (32 hectares) through the Sleepy Hollow Water and Improvement Company into small parcels for weekend cabins and permanent residences.

The name comes from Washington Irving's tale, echoed by Ichabod's cafe and tavern, later a store and gas station now called Canyon Market. A volunteer fire house and community center once stood here; the center was replaced by a modern building in the early 2000s, and the community church is now a private residence.

Sleepy Hollow lies in Carbon Canyon, with its western edge touching Brea in Orange County; Carbon Canyon Road (State Route 142) is the through route, paved in 1925. The canyon community has been evacuated during major fires, including the Freeway Complex Fire of November 2008, when residents stayed away for three days. Chino Hills has an evacuation and emergency access system for the neighborhood.

Carbon Creek flows through the property and once fed natural hot springs along its banks, while Canyon Market has operated for decades as a local gathering spot for residents and travelers passing through.