Phaktanglung is a Rural municipality (Gaunpalika) located in Taplejung District in Koshi Province of eastern Nepal.

The local body was formed by merging seven previous VDCs namely Sawadin, Khejenim, Linkhim, Ikhabu, Tapethok, Lelep, Olangchungkhola.

The population of the rural municipality is 12,017 according to the 2011 Nepal census and total area of the rural council is 1,858.51 square kilometres (717.57 sq mi) which is the 3rd largest rural council of Nepal.

It is the 1st largest rural council of Koshi Province.

Majority of rural municipality is a part of protected area which is called Kanchenjunga Conservation Area[2] comprises cultivated lands, forests, pastures, rivers, high altitude lakes and glaciers.