Argonemertes is a genus of nemertean worms belonging to the family Prosorhochmidae. It may be transferred to the family Plectonemertidae. The name is often misspelled as "Argononemertes" (e.g.https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/0dc71e29-f6b4-4847-9458-fe936658ca70).
All four species are terrestrial animals.