Elaeocarpus thelmae is a species of flowering plant in the family Elaeocarpaceae and is endemic to north-east Queensland.

It is a tree, often with buttress roots at the base of the trunk, egg-shaped to elliptic leaves with many hairy domatia, densely rusty-hairy flowers, and blackish, oval fruit.

Elaeocarpus thelmae is a tree that typically grows to a height of 35 m (115 ft), a dbh of 90 cm (35 in) and often with buttress roots at the base of the trunk.

The four or five petals are about the same size as the sepals with four to six lobes on the tip, and there are fifty to sixty densely-packed stamens.

[2][3] Elaeocarpus thelmae was first formally described in 1984 by Bernard Hyland and Mark James Elgar Coode in the Kew Bulletin.