The smooth toadlet (Uperoleia laevigata) is a species of Australian ground-dwelling frog native to the coast and west of the ranges of south-east Queensland, all of eastern New South Wales and north-eastern Victoria.

Males make a drawn out "arrrrk" call from around the breeding site, this can be anything from a large permanent dam to a flooded ditch or grassland.

Male smooth toadlets may have a dark throat, however the belly will still be white.

In the smooth toadlet this patch is quite large and is almost always red, it can however be orange but is not yellow.

In the dusky toadlet this colour patch is more reduced and is almost always orange, but can be red and occasionally yellow.