Aparallactus werneri, or the Usambara centipede-eater, is a species of mildly venomous rear-fanged snake in the family Lamprophiidae.

The specific name, werneri, is in honor of Austrian herpetologist Franz Werner, from whom Boulenger obtained the type series of specimens.

[2][3][4] A. werneri is found in eastern Tanzania in Usambara and the Uluguru Mountains.

[5] Dorsally, A. werneri is blackish with a deep black, light-edged nuchal collar.

The portion of the rostral visible from above is nearly half as long as its distance from the frontal.