Semimytilus

{{Short description|Genus of bivalves}}

{{Automatic taxobox

|image = Naturalis_Biodiversity_Center_-_RMNH.MOL.316583_-_Semimytilus_algosus_(Gould,_1850)_-_Mytilidae_-_Mollusc_shell.jpeg

|taxon = Semimytilus

|authority = Soot-Ryen, 1955

}}

Semimytilus is a genus in the family Mytilidae. The genus is also connected with freshwater habitats.{{Cite web|title=Semimytilus - Encyclopedia of Life|url=https://eol.org/pages/46466938|access-date=2021-10-03|website=eol.org}}