Sentinelese, India
Frequently dubbed “the most isolated people in the world” by the media, the inhabitants of North Sentinel Island in the Bay of Bengal are intensely reclusive and known to respond violently to visitors to the island. Although referred to as Sentinelese or North Sentinel Islanders, we don’t know what they call themselves; their language is unknown to outsiders, even to the Andaman tribes on neighboring islands to whom they are related. Estimates typically put the Sentinelese population at 50 to 200 people, and they support their numbers with a hunter-gatherer lifestyle: building canoes for fishing and crabbing, and hunting small game with bows, arrows and spears. Since the 1950s, the Indian government has declared the island off-limits and strictly prohibits visitors, for the safety of all concerned. The Sentinelese, like so many isolated Indigenous people, are vulnerable to many diseases that a visitor might introduce. Visitors in turn are vulnerable to arrows, which the Sentinelese are known to shoot at approaching boats, helicopters and people. https://naijapapi.com.ng/blog/most-isolated-peoples/The island made headlines around the world in 2018 when an American missionary traveled there illegally. He was killed soon after by members of the tribe.

Yaifo and more, Papua New Guinea
There may yet be more than 40 uncontacted tribes in Papua New Guinea. Sometimes associated Read more
https://naijapapi.com.ng/blog/most-isolated-peoples/