The rusty-necked piculet (Picumnus fuscus) is a species of bird in subfamily Picumninae of the woodpecker family Picidae.

The adult's face is buffish brown with a rufous tinge and a pale stripe behind the eye; the sides and back of their neck is rusty buff to buff-brown.

Their flight feathers are dark brown with yellowish buff edges on the secondaries and tertials.

Their underparts are mostly pale buffish with a cinnamon or rusty wash on the sides of the breast and flanks.

[4] The rusty-necked piculet is found along the Rio Guaporé, an Amazon tributary that forms the border between Bolivia's Beni Department and Brazil's Mato Grosso state.