Ιλισό is a river in Greece, known for its historical significance and connection to ancient mythology. It flows through the region of Attica and is often associated with the ancient city of Athens. The river was once a vital water source for the area and played a role in various cultural and religious practices. Today, the Ιλισό is mostly a small stream, with parts of its original course covered by urban development. Despite this, it remains a symbol of the rich history of Athens and is often referenced in literature and art, reflecting its enduring legacy in Greek culture.