Cupaniopsis serrata, commonly known as smooth tuckeroo,[2] is a species of flowering plant in the soapberry family and is endemic to eastern Australia.

It is a tree with paripinnate leaves with 6 to 12 oblong to egg-shaped leaflets with a pointed tip, and separate male and female flowers arranged in racemes, the fruit a more or less spherical capsule containing a seed with an orange aril.

[2][3][4] This species was first formally described in 1862 by Ferdinand von Mueller, who gave it the name Cupania serrata in Fragmenta Phytographiae Australiae from specimens collected near Moreton Bay by Walter Hill.

[7] Smooth tuckeroo grows on rocky hillside and in rainforest from near Gympie in south-eastern Queensland to near the Tweed River in northern New South Wales.

[2][4] Cupaniopsis serrata is listed as a "threatened species" under the New South Wales Government Biodiversity Conservation Act 2016.