Marbled eel is a common name for several fishes; while it most commonly refers to Anguilla marmorata, it may also refer to:

Anarchias seychellensis, Seychelles moray, or marbled reef-eel

Anguilla marmorata, marbled eel or giant mottled eel

Anguilla reinhardtii, marbled eel or speckled longfin eel

Callechelys marmorata, marbled snake eel

Gymnothorax obesus, speckled moray or marbled reef eel

Lepophidium marmoratum, marbled brotula or marbled cusk-eel

Muraenolepis marmorata, marbled moray cod or marbled eel-cod

Mastacembelus vanderwaali, ocellated spiny eel or marbled spiny-eel

Mastacembelus armatus, large spiny eel or marbled spiny eel

Synbranchus marmoratus, marbled swamp eel or mottled swamp eel

Torpedo sinuspersici, marbled electric eel or gulf torpedo, an electric ray

Uropterygius marmoratus, marbled reef-eel, marbled eel or slender conger eel

Marbled eel