Stenocarpus umbelliferus is a species of flowering plant in the family Proteaceae. It is endemic to New Caledonia. It has a prostrate or upright habit, growing up to 5 metres in height. Stems are flattened when young, later becoming rounded. The leaves are thick and leathery with a slightly wavy margin. These may be ovate, elliptic, lanceolate or spathulate in shape with petioles that are 3 to 12 mm long. White, cream or pale yellow flowers occur in groups of 3 to 8 per umbel. These are followed by dark-coloured glabrous follicles that are 25 to 80 mm long and 3 to 5 mm wide.