Yakkha (Nepali याक्खा, Yākkhā) is an indigenous ethnic group of Nepal (identical with its Kirat family consisting of Limbu, Sunuwar, and Rai of Mongoloid physiognomy). It is one of the progenies of Nepal's prehistoric Kirat dynasty of around 100 BC. The Yakkha people are subsistence farmers who inhabit the lower Arun valley in eastern Nepal. They number only a few thousand and their language is nearly extinct.
Scholars have different opinions regarding the origin of the word Yakkha. One school of thought claims that the ethnonym Yakkha as per the Aryan Sanskrit Grammar had been spelled in the Aryan-Hindu Mythologies as Yaksa-sh (like Bhisu-shu for an ascetic Bhikchu of the Buddhist holy scripts). Although the legendary Yaksa-sh, by the corrupt name of Yakkha, is being hailed in the Hindu holy scripts, Vedas and the ancient Sanskrit Literature, Yakkha has historically been consistent in the use of its own endonyms. Yakkhawa or Yakkhaba is used to denote the male person and Yakkhama to denote the female person.
The Yakkhas are also known by the exonyms Majhiya, Jimidar and Dewan, titles they accepted after the conquest of the Kirat land by the Gorkhas under Prithvi Narayan Shah. The Yakkhas were not only given ownership of the land but were also given the responsibility of collecting taxes from the lands utilised by Yakkhas as well as non-Yakkhas living in the area. In Darjeeling district and Sikkim of India, Dewan is commonly used as a synonym of Yakkha, and as Dewans they are placed in the Other Backward Class category.
Today, the Yakkha Motherland is considered a patch among the historic Kirat region (i.e., east of the Kathmandu valley). During the so-called National Unification of Nepal by Prithvi Narayan Shah, the traditional bases of the Kirat Lands were merged. The Far Kirat (Pallo Kirat) of the Ten Limbuwan area to the east of the Arun River was divided into seventeen Thums. Among these Seventeen Thums, the Panch (5) Khapan, Panch (5) Majhiya and Das (10) Majhiya; Tin Thum Yakkhalen are regarded as the traditional area of the Yakkhas. This Yakkha area is the Southern part of Sankhuwasabha district bordering the Terhathum District and Taplejung District in the East; Dhankuta District in the South; and Bhojpur District in the West; of the Eastern Nepal. Sibhuwa, Syabun, Wana, Dadagau, Swachi, Yangsijong are the names of 5 Khapan; Madi Mulkharka, Tamafok, Mamgling, Ankhibhuin, Chanuwa, Dandagaun, etc. are the names of the 10 Majhiyas and Hattisudhe, Kingring, Chapabhuin, etc. are the name of 5 Majhiyas.