Ribadesella (Asturian: Ribeseya) is a small 84-square-kilometre (32 sq mi) municipality in the Autonomous Community of the Principality of Asturias, Spain.

Known for its location on the Cantabrian Sea, at the outlet of the River Sella, Ribadesella is a town that forms part of the Picos de Europa (Peaks of Europe).

Here also is the Casco Antiguo, where the old plaza is located, as well as Ribadesella's church: the Iglesia Parroquial de Sta.

The third part of Ribadesella consists of the Paseo Marítimo del Puerto, or the Maritime Avenue of the Port.

Processions take place daily, and a great celebration, including a horse race/spectacular on the Santa Marina beach is held each year.