Nepenthes hirsuta (Hairy Pitcher Plant) is a tropical pitcher plant of the family Nepenthaceae, endemic to Borneo. The specific epithet hirsuta is derived from Latin word hirsutus meaning hairy or bristly, in referring to the indumentum of thick brown hairs on all parts of the plant, including on the inflorescence, and are more prominent on the stems and underside of the leaves. Nepenthes hirsuta has an altitudinal distribution of 200-1100 m above sea level, and grows mostly on sandstone substrates in a wide range of habitats, including kerangas forest, mossy banks in lower montane forests, disturbed vegetation on lower ridges and open areas.
The leaves are coriaceous, canaliculate-spathulate or obovate, and up to 20 cm long. It has an acute or roundish apex. Stems are densely covered with long brown hairs.
Pitchers are mostly green throughout with some having red blotches on the inner surfaces.