Mandjelia commoni 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 commoni honours Australian lepidopterist Ian F.B.

[1][2] The species occurs in Far North Queensland in rainforest.

The type locality is Majors Mountain, near Ravenshoe, in the Tablelands Region.