Synbranchus

{{Short description|Genus of fishes}}

{{Automatic taxobox

| image = Synbranchus marmoratus1.jpg

| image_caption = Marbled Swamp Eel (S. marmoratus)

| taxon = Synbranchus

| authority = Bloch, 1795

| type_species = Synbranchus marmoratus

| type_species_authority = Bloch, 1795{{Cof record|genid=382|title=Synbranchus|access-date=11 November 2019}}

| synonyms = *Typhlobranchus Bloch & Schneider, 1801

• Unibranchapertura Lacepède, 1803
• Unipertura Duméril, 1856

| synonyms_ref = {{Cof family|family=Synbranchidae|access-date=11 November 2019}}

}}

Synbranchus is a genus of swamp eels native to Central and South America.