Rue Es-Siaghine (Arabic: زنقة الصياغين, meaning Silversmith's Street, also transliterated as Rue Siaghin or Rue Siaghine) is a street in Tangier, Morocco. Under Roman Empire rule it was the decumanus maximus, the main thoroughfare of the city. The street led to the harbor through the south gate. Today the street is lined with cafes and bars and souvenir shops, and leads down into the Petit Socco in the medina of Tangier.