| Official Name: | San Lorenzo Canton |
| Nickname: | Sanloro |
| Settlement Type: | Canton |
| Motto: | "The land of rain and the sun." |
| Subdivision Type: | Country |
| Subdivision Name: |  Ecuador |
| Subdivision Name1: | Esmeraldas Province |
| Subdivision Type2: | Capital |
| Government Type: | Local Government Council |
| Leader Title: | Alcalde |
| Leader Name: | Glenn Arroyo |
| Established Date: | 2019-2023 |
| Unit Pref: | Metric |
| Area Total Km2: | 3096 |
| Population As Of: | 2022 census |
| Population Footnotes: | [1] |
| Population Total: | 48391 |
| Population Density Km2: | auto |
| Timezone: | ECT |
| Utc Offset: | -5 |
| Coordinates: | 1.2658°N -78.8414°W |
San Lorenzo Canton is a canton of Ecuador, located in the Esmeraldas Province. Its capital is the town of San Lorenzo. Its population at the 2001 census was 28,180[2]
Ethnic groups as of the Ecuadorian census of 2010:[3]