| El Cuartón | |
| Settlement Type: | Village |
| Pushpin Map: | Spain Province of Cádiz#Spain |
| Pushpin Map Caption: | Location in the Province of Cádiz |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Cádiz |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Campo de Gibraltar |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Tarifa |
| Subdivision Type5: | Judicial district |
| Subdivision Name5: | Algeciras |
| Coordinates: | 36.0667°N -5.5367°W |
| Population Total: | 164 |
| Population As Of: | 2009 |
| Population Density Km2: | auto |
| Blank Name Sec1: | Official language(s) |
| Blank Info Sec1: | Spanish |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Area Code Type: | Dialing code |
El Cuartón is a village in the municipality of Tarifa in the Province of Cadiz in southeastern Spain. It is located by road southwest of the city centre of Algeciras, along the main road to the southern tip of Spain at Tarifa, which is away, and it lies just to the southwest of El Bujeo. According to the National Statistics Institute, El Cuartón had 164 inhabitants in 2009.