Long Pasia is a tourist spot and eco tourism village in Ulu Padas River, Sipitang District, Sabah.

Long Pasia is a home town of Lun Bawang/Lun Dayeh tribes and has a population of about 1,000 people, and all of them are Christians of Borneo Evangelical Church (SIB).

Located at 1,000 m (3,300 ft) above sea level on the Maligan Highlands, it is adjacent to Payeh Maga.

Key economic activities are paddy planting and ecotourism.

It is renowned for its diversity of orchid species, as well as pitcher plants which can be found in abundance in Long Pa' Sia' Kerangas Park and in forests around Ulu Padas river.