| Official Name: | Portoviejo Canton |
| Settlement Type: | Canton |
| Image Map1: | Portoviejo in Manabi (Ecuador).svg |
| Map Caption1: | Portoviejo Canton in Manabí Province |
| Subdivision Type: | Country |
| Subdivision Name: |  Ecuador |
| Subdivision Name1: | Manabí Province |
| Subdivision Type2: | Capital |
| Unit Pref: | Metric |
| Area Total Km2: | 957.3 |
| Population As Of: | 2022 census |
| Population Footnotes: | [1] |
| Population Total: | 322925 |
| Population Density Km2: | auto |
| Timezone: | ECT |
| Utc Offset: | -5 |
| Coordinates: | -1.0562°N -80.4552°W |
Portoviejo Canton is a canton of Ecuador, located in the Manabí Province. Its capital is the city of Portoviejo. Its population at the 2001 census was 238,430.[2]
Ethnic groups as of the Ecuadorian census of 2010:[3]