Chaetonychia

{{Short description|Genus of flowering plants}}{{Speciesbox

| name = Chaetonychia cymosa

| image = Chaetonychia cymosa.jpg

| parent_authority = (DC.) Sweet

| taxon = Chaetonychia cymosa

| authority = (L.) Sweet

}}

Chaetonychia is a genus of flowering plants belonging to the family Caryophyllaceae.{{cite web |title=Chaetonychia (DC.) Sweet {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:19921-1 |website=Plants of the World Online |access-date=21 March 2021 |language=en}} It is monotypic, being represented by the single species Chaetonychia cymosa.

Its native range is the western Mediterranean.