Octomeles is a monotypic genus of plant in family Tetramelaceae. The sole species is Octomeles sumatrana, sometimes written O. sumatranum.

Octomeles sumatrana, commonly called Benuang, or Ilimo, is found in Brunei, Indonesia, Malaysia, Papua New Guinea, the Philippines, and the Solomon Islands. It and Tetrameles nudiflora are the only two species in the family Tetramelaceae. They were previously classified in the Datiscaceae but found genetically not to form a natural clade with the other members of that family.

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