Rhyothemis princeps, known as the sapphire flutterer,[3] is a species of dragonfly of the family Libellulidae.

Rhyothemis princeps is found in Australia and New Guinea only.

It is a medium-sized dragonfly (wingspan 70mm, length 40mm) that inhabits a variety of freshwater lakes, ponds, and swamps.

In sunlight the dark colours can reflect a metallic purplish tinge.

In Australia its range is limited to north-eastern Queensland from Cape York Peninsula to around Rockhampton.