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

It was described in 1987 by Australian arachnologist Mark Harvey.

The specific epithet greensladeae honours Penny Greenslade for her efforts in collecting pseudoscorpions.

[1] The species occurs in the southern Eyre Peninsula region of South Australia.

The type locality is the summit of the Marble Range, near Wangary.