The Puno antpitta (Grallaria sinaensis) is a species of bird in the family Grallariidae.

[6] Grallaria antpittas are a "wonderful group of plump and round antbirds whose feathers are often fluffed up...they have stout bills [and] very short tails".

Adults have a mostly dark reddish yellow-brown crown, upperparts, wings, and tail with lighter edges on the flight feathers.

Both sexes have a dark brown iris, a black bill, and bluish gray legs and feet.

At least in Bolivia, it favors areas of dense undergrowth at treeline, along rivers, and at forest edges; it is sometimes associated with bamboo.

Its diet is assumed to be similar to those of other Grallaria antpittas, which feed on arthropods, earthworms, and other invertebrates.

They run or hop on the forest floor and stop to find prey by flipping aside leaf litter and probing the soil.