Ishi (c. 1861 – March 25, 1916) was the last known member of the Native American Yahi people from California in the United States. The rest of the Yahi (as well as many members of their parent tribe, the Yana) were killed in the California genocide in the 19th century. Ishi lived most of his life isolated from modern American culture. In 1911, aged 50, he came out near the foothills of Lassen Peak in Northern California.