Pristimantis pruinatus is a species of frog in the family Strabomantidae.

It is endemic to Venezuela and only known from its type locality, the summit of Cerro Yaví (2,150 m (7,050 ft) above sea level), a sandstone table-top mountain (tepui) in the Amazonas State.

The body is uniformly blackish with fine, silvery frosting dorsally.

The upper eyelids have small flat warts.

[2] It has been collected on low vegetation and in a small cave in montane tepui forest.