Chief Manuelito or Hastiin Chʼil Haajiní was one of the principal headmen of the Diné people before, during and after the Long Walk Period. Manuelito is the diminutive form of the name Manuel, the Iberian variant of the name Immanuel; Manuelito translates to Little Immanuel. He was born to the Bit'ahnii or ″Folded Arms People Clan″, near the Bears Ears in southeastern Utah about 1818. As many Navajo, he was known by different names depending upon context. He was Ashkii Diyinii, Dahaana Baadaané, Hastiin Ch'ilhaajinii and as Nabááh Jiłtʼaa to other Diné, and non-Navajo nicknamed him "Bullet Hole".

The Navajo are a Native American people of the Southwestern United States.