| Soto del Barco | |
| Settlement Type: | Municipality |
| Native Name: | Sotu'l Barcu (Asturian) |
| Pushpin Map: | Spain |
| Pushpin Map Caption: | Location in Spain |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Asturias |
| Subdivision Type3: | Judicial district |
| Subdivision Name3: | Pravia |
| Seat Type: | Capital |
| Seat: | Soto |
| Coordinates: | 43.55°N -12°W |
| Elevation Max M: | 131 |
| Area Total Km2: | 8.09 |
| Population As Of: | 2023 |
| Population Total: | 3818 |
| Population Demonym: | murense |
| Population Density Km2: | auto |
| Blank Name Sec1: | Official language(s) |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 33138 |
| Area Code Type: | Dialing code |
| Leader Title: | Alcalde |
| Leader Name: | María del Carmen Arango Sánchez |
| Leader Party: | PSOE |
Soto del Barco (Asturian: Sotu'l Barcu) is a small, coastal municipality in the Autonomous Community of the Principality of Asturias, Spain. It is located on the banks of the mouth of the Nalón and along the Cantabrian coast. As of 2023, the municipality is home to 3,818 people who reside in five parishes: Soto del Barco, L'Arena, Ranón, Riberas, and La Corrada.[1]
After the Roman occupation of Iberia, a fort, which had been constructed in the area in order to defend the mouth of the Nalón, was either restored or reconstructed by Alfonso III; this fort is still standing and is known as the Castillo de San Martín. Until 1836, Soto del Barco fell under the municipality of Pravia; it became independent on 29 December. Its population reached its peak at over 6,000 in the 1960s; due to the weakening of the local fishing and canning industries, the population has fallen markedly since that decade. The service and tourism industries are now the largest in the municipality.[2]