View of the Odiel River
|Origin||Sierra de Aracena|
|Source elevation||660 metres (2,170 ft)|
|Mouth elevation||0 metres (0 ft)|
|Basin area||Tinto - Odiel|
The Odiel (Spanish: Río Odiel) is a river in the Atlantic basin in southern Spain, more precisely in the province of Huelva, Andalusia. It originates at Marimateos in the Sierra de Aracena at an elevation of 660 metres (2,170 ft) above sea level. At the Punta del Sebo, it joins the Rio Tinto to form the Huelva Estuary. Its principal tributaries are the Escalada, Meca, Olivargas, Oraque, Santa Eulalia, and El Villar. Its basin covers 990 square kilometres (380 sq mi).
In Roman times it was known as the Luxia. Even before the Romans, its mouth was an important place of commerce, as can be seen by archaeological remnants from Phoenicians and Ancient Greeks, known as the "Huelva Estuary Deposit" (Spanish: Depósito de la Ría de Huelva), dated 1000 BCE.