Pseudophyllus titan, the giant false leaf katydid (a name also used for a few other species), is a species of leaf-mimic bush-cricket of the subfamily Pseudophyllinae found in the canopy of tropical forests in Mainland Southeast Asia, Bangladesh (the species' type locality is Sylhet), northeastern India (Assam and Nagaland), and southernmost China (Yunnan). It is among the largest species in the genus Pseudophyllus, which also makes it one of the world's largest Orthoptera, with a typical length of 13 cm from head to tip of the folded wings and a wingspan of 23 cm. Like many other species of crickets and grasshoppers, the male is capable of stridulation, producing a relatively loud and distinctive, bird-like chirp; it usually stridulates ("sings") at night.

They are active from April to September.