Synsphyronus hansenii is a species of pseudoscorpion in the Garypidae family. It was described in 1908 by Danish arachnologist Carl Johannes With.[1] The specific epithet references Danish zoologist Hans Jacob Hansen.
The species occurs in south-western and south-eastern Australia in woodland habitats, often under bark. The type locality is Tasmania.[1]
The pseudoscorpions are terrestrial predators.[1]