Diplasia
{{Short description|Genus of plants}}
{{Automatic taxobox
| image = Diplasia karatifolia imported from iNaturalist photo 306144478 on 4 December 2023.jpg
| image_caption =
| taxon = Diplasia
| authority = Pers.
}}
Diplasia is a monotypic genus of flowering plants belonging to the family Cyperaceae.{{cite web |title=Diplasia Pers. {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:13713-1 |website=Plants of the World Online |access-date=14 May 2021 |language=en}} Its only species, Diplasia karatifolia Rich., has a native range from Trinidad to Central and Southern Tropical America.