Radulphius

{{short description|Genus of spiders}}

{{Italic title}}

{{Automatic taxobox| taxon=Radulphius| authority=Keyserling{{cite web|title=Radulphius| website=World Spider Catalog

| publisher=Natural History Museum Bern

| accessdate=2017-03-20

| url=http://www.wsc.nmbe.ch/genus/1965}}

| type_species = Radulphius bicolor

| subdivision_ranks = Species

| subdivision=15, see text

}}

Radulphius is a genus of spiders in the family Cheiracanthiidae. It was first described in 1891 by Keyserling. {{As of|2017}}, it contains 15 species, all from Brazil.