Blennius

{{Short description|Genus of fishes}}

{{Automatic_taxobox

| fossil_range = {{fossilrange|20|0}}
Late Miocene to Present{{cite journal

|last=Sepkoski

|first=Jack

|title=A compendium of fossil marine animal genera

|journal=Bulletins of American Paleontology

|volume=364

|page=560

|year=2002

|url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class

|accessdate=2008-01-08

|url-status=dead

|archiveurl=https://web.archive.org/web/20090220223520/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class

|archivedate=2009-02-20

}}

| image = Blennius ocellaris Messina.jpg

| image_caption = Blennius ocellaris

| taxon = Blennius

| authority = Linnaeus, 1758

}}

Blennius is a genus of combtooth blennies in the family Blenniidae. Its members include Blennius ocellaris, the butterfly blenny.