Mandjelia wyandotte is a species of mygalomorph spider in the Barychelidae family.

It was described in 1994 by Australian arachnologists Robert Raven and Tracey Churchill.

The specific epithet wyandotte refers to the type locality.

[1][2] The species occurs in Far North Queensland in open forest with grassland habitats.

The type locality is Wyandotte Creek, between Mount Garnet and Charters Towers in the Tablelands Region.