| San Martín del Rey Aurelio | |
| Settlement Type: | Municipality |
| 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: | Comarca |
| Subdivision Name3: | Nalón |
| Seat Type: | Capital |
| Seat: | Sotrondio |
| Coordinates: | 43.2747°N -5.6072°W |
| Elevation Max M: | 1096 |
| Area Total Km2: | 56.13 |
| 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: | 33950 |
| Area Code Type: | Dialing code |
| Leader Title: | Alcalde |
| Leader Name: | Enrique Fernandez Rodriguez |
| Leader Party: | PSOE |
San Martín del Rey Aurelio (Asturian: Samartín del Rei Aurelio) is a municipality of the Autonomous Community of the Principality of Asturias in northern Spain.
There are three main towns in the municipality: Sotrondio, El Entrego, and Blimea, and many villages, such as Santa Bárbara and La Hueria.
It is situated in the central part of Asturias, just below the Sierra de San Mamés, part of the Cantabrian Mountains. The Nalón River, the longest river in Asturias, crosses the municipality.[1] The Redes Natural Park is located nearby.
Historically a mining location, nowadays it is in a re-industrial process with the emigration of many young people (about 30% of under 30). New computer based factories are attempting to establish themselves.
There are five parroquias:
The current mayor is Enrique Fernández Rodríguez (FSA-PSOE).
| Party/List | 1979 | 1983 | 1987[2] | 1991 | 1995 | 1999 | 2003 | 2007 | 2011[3] | 2015 | |
| PSOE | 11 | 13 | 9 | 11 | 11 | 12 | 11 | 9 | 7 | 7 | |
| PCE / IU-BA | 7 | 5 | 6 | 6 | 4 | 4 | 4 | 3 | 4 | 5 | |
| Somos | 3 | ||||||||||
| CD / AP / PP | 3 | 2 | 3 | 6 | 4 | 6 | 5 | 5 | 2 | ||
| FAC | 1 | 0 | |||||||||
| UCD / CDS | 3 | 4 | 1 | ||||||||
| URAS / URAS-PAS | 1 | 0 | 0 | ||||||||
| Total | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 17 | 17 | 17 | |