The Yumu (also written Jumu) were an Indigenous Australian people of the Northern Territory.
The Yumu language was called Ŋatatara. This was often mistaken for their ethnonym and transcribed Ngatatara leading to confusion between the Yumu and the Ngaatjatjarra of Western Australia.
According to Norman Tindale, the Yumu ranged over some 4900mi2 of tribal land, in the Western MacDonnell Ranges, running east of Mount Russell to the vicinity of Mount Zeil. Their northern reaches were apparently just south of central Mount Wedge and Lake Bennett. He puts their southern limits around Mount Solitary and Mount Udor. They were also present at Haast Bluff (Ulambaura), which they called Paura, Mount Liebig and Peculiar.
The marriage rules of the Yumu were, as with the Ngalia, found to be identical to that of the Arrernte class system with the difference that prefixes were attached to the respective sexes, t(j)a- for males, and na- for females.
| Men with skin name | Only marry women named | Sons will be | Daughters will be |
|---|---|---|---|
| Tjapaltjarri | Nakamarra | Tjungurrayi | Nungurrayi |
| Tjapangati | Nampitjinpa | Tjapanangka | Napanangka |
| Tjakamarra | Napaltjarri | Tjupurrula | Napurrula |
| Tjampitjinpa | Napangati | Tjangala | Nangala |
| Tjapanangka | Napurrula | Tjapangati | Napangati |
| Tjungurrayi | Nangala | Tjapaltjarri | Napaltjarri |
| Tjupurrula | Napanangka | Tjakamarra | Nakamarra |
| Tjangala | Nungurrayi | Tjampitjinpa | Nampitjinpa |
According to Géza Róheim, like the Pintupi, the Yumu believed that menstruation was induced by a hirsute demon (mamu) called 'hair-big' (Inyutalu) which penetrated the vagina, scratching it with his nails.
According to Tindale, the majority of the Yumu people died as a consequence of an epidemic which swept their community between 1932 and 1940. A remnant of children were adopted into the Kukatja tribe thereafter. Their land was then claimed by the Ngalia as being (unpossessed country). Both Margaret Heffernan and Sarah Holcombe, writing decades later, could find no evidence for their existence, while some early observers such as H. K. Fry considered them to be a branch of the Kukatja (Luritja).
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