Neofabricia sericisepala is a species of flowering plant in the family Myrtaceae, and is endemic to Cape York Peninsula in Queensland.

It is a shrub or small tree with lance-shaped leaves with the narrower end towards the base, or narrowly elliptic, with yellow flowers borne singly in leaf axils, and broadly cup-shaped fruits.

Neofabricia sericisepala is a shrub or small tree that typically grows to a height of up to 6 m (20 ft) and has hard, grey bark.

Flowering mostly occurs from May to July, and the fruit is broadly cup-shaped, 5–6 mm (0.20–0.24 in) in diameter containing winged seeds.

[3][2] Neofabricia sericisepala grows in woodland in central and southern areas of Cape York Peninsula.