Adenomera guarani, the Guaraní leaf-litter frog, is a species of frog native to Paraguay, Argentina, and Brazil.

[1] The frog is named for the Guaraní people which live in the same region as A.

[3] Males and females have similar foot lengths, measuring around 11.5 mm.

Heads are wider than their length, with males possessing a head width of 8.3 mm and a head length of 7.7 mm; in contrast, females have a head width of 8.1 mm and a head length of 7.5 mm.

[3] Advertisement calls of A. guarani have a repetition rate of 73-147 per minute, which is fewer than some other Adenomera species, such as Adenomera diptyx.