Orthoraphium

{{Short description|Genus of plants}}

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| genus = Orthoraphium

| parent_authority = Nees

| species = roylei

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Orthoraphium is a monotypic genus of flowering plants belonging to the family Poaceae. The only species is Orthoraphium roylei.{{cite web |title=Orthoraphium Nees {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:18636-1 |website=Plants of the World Online |access-date=28 May 2021 |language=en}}

Its native range is Himalaya to Japan.