Dupontiopsis

{{Short description|Genus of plants}}

{{Speciesbox

| image =

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| display_parents = 4

| genus = Dupontiopsis

| parent_authority = Soreng, L.J.Gillespie & Koba

| species = hayachinensis

| authority = (Koidz.) Soreng, L.J.Gillespie & Koba

}}

Dupontiopsis is a monotypic genus of flowering plants belonging to the family Poaceae. The only species is Dupontiopsis hayachinensis.{{cite web |title=Dupontiopsis Soreng, L.J.Gillespie & Koba {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:60468282-2 |website=Plants of the World Online |access-date=26 May 2021 |language=en}}

Its native range is Japan.