|Founded||May 5, 1971|
|• City||21.65 km2 (8.36 sq mi)|
|Elevation||297 m (974 ft)|
|• Density||2,600/km2 (6,700/sq mi)|
|Area code||(+593) 06|
|Website||www.lagoagrio.gob.ec (in Spanish)|
Nueva Loja (Spanish pronunciation: [ˈnwe.βa ˈlo.xa]), also known as Lago Agrio, is the capital of the province of Sucumbíos in Ecuador. It was founded in the 1960s as a base camp of Texaco. The official population as of the 2022 census is 55,627.