Retrophyllum minus, the bois bouchon, is a species of conifer in the family Podocarpaceae. It is endemic to New Caledonia.
It is a sparsely branched small tree with a flared trunk which tapers towards the top and has rough bark. It produdes pear-shaped fruits that are dark-red when mature.
The species occurs near rivers and lakes of the Plaine des Lakes in the south of Grande Terre.
It is threatened by habitat loss to mining and wildfire.