Eskiminzin (Ndee biyati' / Nnee biyati': "Men Stand in Line for Him"; or Hashkebansiziin, Hàckíbáínzín - "Angry, Men Stand in Line for Him", c. 1828–1894) was a local group chief of the Aravaipa band of the San Carlos group of the Western Apache during the Apache Wars.

In 1871, Eskiminzin and the Pinaleño/Pinal band of the San Carlos Apaches under Capitán Chiquito accepted an offer by the US Government to settle down and plant crops in the vicinity of Camp Grant, a fort near modern-day Tucson, Arizona.

This resettlement plan was short-lived; on April 30, 1871, a band of anti-Apache American civilians under William S. Oury, Mexican civilians under Jesús María Elías, and Tohono O'odham warriors under their chief Francisco Galerita launched a merciless assault on the settlement without warning.

In the process of what became known as the Camp Grant massacre, 144 occupants (almost entirely children and women) were indiscriminately butchered and mutilated in the space of less than an hour, nearly all of them scalped.

However, later in life he was suspected of sheltering his son-in-law the Apache Kid, was imprisoned without a trial, and soon after his release, died in 1894.