| Official Name: | Lago Agrio Canton |
| Settlement Type: | Canton |
| Image Map1: | Cantones de Sucumbíos.png |
| Map Caption1: | Cantons of Sucumbíos Province |
| Subdivision Type: | Country |
| Subdivision Name: |  Ecuador |
| Subdivision Name1: | Sucumbíos Province |
| Subdivision Type2: | Capital |
| Unit Pref: | Metric |
| Area Total Km2: | 3134 |
| Population As Of: | 2022 census |
| Population Footnotes: | [1] |
| Population Total: | 105044 |
| Population Density Km2: | auto |
| Timezone: | ECT |
| Utc Offset: | -5 |
| Coordinates: | 0.0847°N -76.8828°W |
Lago Agrio Canton is a canton of Ecuador, located in the Sucumbíos Province. Its capital is the town of Nueva Loja. Its population at the 2001 census was 66,788.[2] The region contains the Lago Agrio oil field which is at the heart of a high-profile court case against Chevron.