Synsphyronus heptatrichus is a species of pseudoscorpion in the Garypidae family.

It was described in 1987 by Australian arachnologist Mark Harvey.

The specific epithet heptatrichus comes from the Greek hepta ('seven') and trichos ('hair'), referring to the presence of seven trichobothria on the fixed chelal finger, the only character distinguishing the species from S. paradoxus.

[1] The species occurs in the Top End of the Northern Territory.

The type locality is 13.5 km south-east of Roper Bar, where the holotype was found beneath the bark of a tree.