Gynacantha mocsaryi is a species of dragonfly in the family Aeshnidae, known as the paddle-tipped duskhawker. It is found in northern Queensland, Australia, the Maluku Islands and New Guinea.
Gynacantha mocsaryi is a large, dark coloured dragonfly with a strongly constricted waist in its abdomen at segment 3. Adult males have a blue colouring. It is a crepuscular insect and flies at dawn and dusk.