The bar-bellied woodcreeper (Hylexetastes stresemanni) is a species of bird in the subfamily Dendrocolaptinae of the ovenbird family Furnariidae.

[4][5] The bar-bellied woodcreeper sensu stricto has three subspecies, the nominate H. s. stresemanni (Snethlage, 1925), H. s. insignis (Zimmer, 1934), and H. s. undulatus (Todd, 1925).

Adults of the nominate subspecies have brown to olive-brown head, upper back, and wing coverts, with pale streaks on the forehead.

Juveniles have a more rufous back than adults, a mix of streaks and bars on the throat and breast, and a more brownish bill.

H. s. undulatus is larger than the nominate, has no forehead streaks, is slightly more olivaceous and less reddish on its underparts, and has bolder barring on its belly.

It is believed to follow army ant swarms and occasionally join mixed species feeding flocks.

It apparently forages by sallies from a vertical perch, fairly low when attending ant swarms and up to the subcanopy elsewhere.

It its thought to be "highly sensitive to human disturbance" and "[p]ossibly merits reassessment of conservation status as Near-threatened, or even Vulnerable.