| Boaco | |
| Settlement Type: | Department |
| Flag Size: | 100px |
| Seal Size: | 70px |
| Mapsize: | 200px |
| Subdivision Type: | Country |
| Subdivision Name: | Nicaragua |
| Seat Type: | Capital |
| Seat: | Boaco |
| Area Total Km2: | 4177 |
| Population Footnotes: | [1] |
| Population Total: | 186284 |
| Population As Of: | 2021 estimate |
| Population Density Km2: | auto |
| Population Urban: | 64367 |
| Iso Code: | NI-BO |
Boaco (pronounced as /es/) is a department in Nicaragua. It was formed in 1938 out of part of Chontales Department. It covers an area of 4,177 km2 and has a population of 186,284 (2021 estimate). The capital is the city of Boaco. Indigenous peoples are the Nahuas and Sumos.