| Official Name: | Pueblo Viejo |
| Settlement Type: | Municipality |
| Pushpin Map: | Dominican Republic |
| Pushpin Relief: | 1 |
| Coordinates: | 18.4°N -116°W |
| Subdivision Type: | Country |
| Subdivision Name: | Dominican Republic |
| Subdivision Type1: | Province |
| Subdivision Name1: | Azua |
| Area Total Km2: | 45.38 |
| Population As Of: | 2012 |
| Population Total: | 8251 |
| Population Density Km2: | auto |
Pueblo Viejo is a municipality (municipio) of the Azua province in the Dominican Republic.
The town that is now known as Pueblo Viejo was the place where in 1504 Diego Velázquez de Cuéllar, the conqueror of Cuba, founded the colonial town of Azua de Compostela. It was named in honour of one of the first Spanish settlers in the area, Don Pedro Gallego, a native of Santiago de Compostela, in Galicia, Spain. The first part of the name is derived from the local Native American name for the area. The old colonial city was destroyed by an earthquake on October the 16th 1751. The settlers of the area moved further North, near the River Road, and established a new town in that area.