The red-backed toadlet (Pseudophryne coriacea) is a species of ground frog native to the coast and adjacent ranges of eastern Australia, from just north of Sydney to South-eastern Queensland.

It is normally red, from red-orange or red-brown on the dorsal surface, however on occasion grey-red colour morphs can occur (see image).

There is a dark (normally black) "dividing" line present right down the entire side of the frog, starting from the nostril.

Males make an "ark" call, similar to most Pseudophryne species, but it is slightly more of an elongated note compared to P. australis and P. bibronii.

Males call from under moist leaf litter and rotting logs, during spring, summer and autumn, they breed after rain.