The Siwis are a Berber-speaking group living in the Siwa Oasis. They are mainly based in Egypt. Their language is also called Siwi. The western desert of Egypt is one of the most arid areas of the world, apart from a little rain on the coastal strip. The Siwa are the inhabitants Egypt’s Siwa Oasis, which is also known as Jupiter Ammon. They live in a somewhat compact, walled town and in a number of outlying villages. Although their native language, Siwah, is a Berber dialect, it is not closely related to other Berber languages.