Dendrolimus pini, the pine-tree lappet, is a moth of the family Lasiocampidae.

The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.

The moth flies from June to August depending on the location.

The larvae feed on Scots pine (Pinus sylvestris), but also other Pinus species, as well as Norway spruce (Picea abies) and silver fir (Abies alba).

This article on a moth of the family Lasiocampidae is a stub.