Rhabdophyllum arnoldianum, synonyms including Ouratea quintasii, is a species of plant in the family Ochnaceae.

It is native to tropical Africa from Nigeria to South Sudan.

[1] Rhabdophyllum arnoldianum is native to tropical Africa: Cameroon, the Central African Republic, the Republic of the Congo, Equatorial Guinea, Gabon, the Gulf of Guinea islands, Nigeria, Sudan, and the Democratic Republic of the Congo (Zaire).

[1] Ouratea quintasii was assessed as "vulnerable" for the 1998 IUCN Red List, where it is said to be native only to São Tomé Island.

[2] As of April 2023[update], O. quintasii was regarded as a synonym of Rhabdophyllum arnoldianum, which has a much wider distribution.