The Chochenyo (also called Chocheño, Chocenyo) are one of the divisions of the Indigenous Ohlone (Costanoan) people of Northern California.

The Ohlone tribes were hunter-gatherers who moved into the San Francisco Bay Region around 500 CE, displacing earlier Esselen people.

The speech of the last two native speakers of Chochenyo was documented in the 1920s in the unpublished fieldnotes of the Bureau of American Ethnology linguist John Peabody Harrington.

In 1925, Alfred Kroeber, then director of the Hearst Museum of Anthropology, declared the Ohlone extinct, which directly led to its losing federal recognition and land rights.

[5] In 2017 the tribe opened Cafe Ohlone in Berkeley focused on traditional Chochenyo foods and cultural restoration.