Euphorbia villosa, or hairy spurge, is a species of perennial, herbaceous plant in the family Euphorbiaceae.
It grows to a maximum height of 80 cm. It is named for the hairy undersides of its leaves. The leaves are lightly toothed towards the apex. Chromosomes 2n=20.
It is native to Europe. In the British Isles it has only been identified in England, where it became extinct in 1924.