Glycosmis macrantha is a tree in the family Rutaceae.

The specific epithet macrantha is from the Greek meaning 'large flower'.

[3] Glycosmis macrantha grows as a tree up to 20 metres (70 ft) tall with a trunk diameter of up to 20 cm (8 in).

The ovoid fruits measure up to 1 cm (0.4 in) long.

[3] Glycosmis macrantha is endemic to Borneo.