Oncinotis is a genus of plant in the Apocynaceae family, first described as a genus in 1849. It is native to Africa, including Madagascar. As of August 2013 the World Checklist of Selected Plant Families recognises 7 species:
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0