Mecistocephalus tsenapus is a species of centipede in the Mecistocephalidae family.

It was described in 1944 by American myriapodologist Ralph Vary Chamberlin.

[1][2] This species is light brown, has 49 pairs of legs, and can reach 16 mm in length.

[1] The species occurs in New Guinea.

The type locality is the Tsenap Hills, upper Sepik River, Papua New Guinea.