Planchonia grandis is tree in the family Lecythidaceae, native to Southeast Asia.

The specific epithet grandis is from the Latin meaning 'tall', referring to its height.

[3] Planchonia grandis is native to Sumatra, Peninsular Malaysia, Singapore and Borneo.

[3] Planchonia grandis has been assessed as near threatened on the IUCN Red List.

It is mainly threatened by its presence in low-elevation areas, where its habitat may be degraded by conversion for agriculture.