Elminius

{{Short description|Genus of barnacles}}

{{Automatic taxobox

| image = Elminius kingii, Canal Tenglo, Los Lagos, CL imported from iNaturalist photo 285200076.jpg

| image_caption = Elminius kingii

| taxon = Elminius

| authority = Leach, 1825

}}

Elminius is a genus of barnacles in the family Elminiidae, containing these species:

• Elminius kingii Gray, 1831
• Elminius cristallinus Gruvel, 1907

Several species previously placed in the genus Elminius have been transferred to Austrominius, Epopella, Matellonius, and Protelminius.