| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Olivo | city | Esmeraldas | Ecuador | 0.98 | -79.42 | 196 | 5189 |
| Olmedo | city | Esmeraldas | Ecuador | 1.22 | -79.05 | 0 | 5380 |
| Olmedo Perdomo | city | Esmeraldas | Ecuador | 0.72 | -80.09 | 830 | 1863 |
| Ostiones | city | Esmeraldas | Ecuador | 1.05 | -79.31 | 45 | 1802 |