Afon Eden

{{short description|River in Gwynedd, Wales}}

{{Use dmy dates|date=March 2020}}

{{Infobox river

| name = Afon Eden

| image = Afon Eden - geograph.org.uk - 62698.jpg

| image_size = 300px

| image_alt =

| image_caption = Afon Eden near Coed-y-Brenin

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| native_name ={{native name|cy|Afon Eden}}

| name_other = River Eden

| source1_location =

| mouth_location = Ganllwyd

| progression =

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|length_km=10

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Afon Eden is a tributary river than runs into the Afon Mawddach in Gwynedd, Wales.

It is a protected river because it is one of the few breeding grounds for freshwater pearl mussels.{{cite web | url=http://jncc.defra.gov.uk/protectedsites/sacselection/sac.asp?EUCode=UK0030075 | title=Afon Eden - Cors Goch Trawsfynydd | publisher=Joint Nature Conservation Committee | accessdate=9 June 2014}}