Nyctimystes tyleri is a species of frog in the subfamily Pelodryadinae of the family Hylidae.

[3][4] It is endemic to Papua New Guinea and only known from its type locality, Gapaia Creek, between Garaina and Saureli, in the Morobe Province.

[1][3] The specific name honours Michael J. Tyler, an Australian herpetologist,[2][5] "in recognition of his notable contributions to the systematics of Australo-papuan frogs.

Ventral surfaces are grey with small, dark brown spots on the chin, chest, and abdomen.

[2] The type specimen—the only known specimen—was encountered at night sitting on a tree branch about 10 metres from a torrential mountain stream in rainforest at an elevation of 1,280 m (4,200 ft) above sea level.