Eustrongylides is a genus of nematodes belonging to the family Dioctophymidae.^[1] The species of this genus cause eustrongylidosis.

Eustrongylides
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Nematoda
Class:	Chromadorea
Order:	Ascaridida
Family:	Dioctophymidae
Genus:	Eustrongylides Jägerskiöld, 1909

The genus has almost cosmopolitan distribution.^[1]

Species:^[1]

• Eustrongylides excisus Jägerskiöld, 1909
• Eustrongylides ignotus Jägerskiöld, 1909
• Eustrongylides mergorum (Rudolphi, 1809)
• Eustrongylides papillosus (Rudolphi, 1802)
• Eustrongylides rubrum (Linton, 1892)
• Eustrongylides sinicus Wu & Liu, 1943
• Eustrongylides spinispiculum Rautela & Malhotra, 1984
• Eustrongylides tubifex (Nitzsch & Rudolphi, 1819)