The Yeti is native to Tibet. It stands up to 15 feet, and is a snowy white furred humanoid, that may be related to the troll. It fears fire. The Yeti will attack and eat any thing that it meets, so no witch or Wizard has had the opportunity to study it up close yet. Yeti's are one of the Wizarding Worlds worst kept secrets as there had been so many Muggle sightings of the Yeti, the International Confederation of Wizards had to place a permanent International Task Force up in the mountains to take care of it and Tibet has one of the worst Wizarding secrecy records, due to its continuing breaches of Clause 73 of the International Statute of Wizarding Secrecy.
The Yeti is also known as Bigfoot or the Abominable Snowman, Gilderoy Lockhart taught his second year class about the Yeti, probably using his book Year with the Yeti.