Araucaria humboldtensis (Humboldt's araucaria) is a species of conifer in the Araucariaceae family. It is found only in New Caledonia. It is threatened by habitat loss, as even though the remaining wild populations are located within protected park areas, an increased frequency of forest fires in recent years has led to continued degradation of habitat and increased dieback of mature trees. Araucaria humboldtensis is one of the smaller trees in its family, ranging from 6–15 m in height, with a distinct flattened crown in mature specimens. It is found in the wild only in three remnant populations in the south of the main island Grand Terre, growing on Mont Humboldt, Mont Mou and Mont des Sources at an altitude of between 750–1500 m.