| Koun-Fao Department | |
| Native Name: | Département de Koun-Fao |
| Native Name Lang: | fr |
| Settlement Type: | Department |
| Subdivision Type: | Country |
| Subdivision Type1: | District |
| Subdivision Name1: | Zanzan |
| Subdivision Type2: | Region |
| Subdivision Name2: | Gontougo |
| Seat Type: | Departmental seat |
| Seat: | Koun-Fao |
| Established Title: | 2005 |
| Established Date: | Established as a second-level subdivision via a division of Tanda Dept |
| Established Title1: | 2011 |
| Established Date1: | Converted to a third-level subdivision |
| Leader Title: | Prefect |
| Leader Name: | Yolande Djirabou |
| Unit Pref: | Metric |
| Area Total Km2: | 3600 |
| Population Total: | 167,881 |
| Population Footnotes: | [1] |
| Population As Of: | 2021 census |
| Population Density Km2: | auto |
| Timezone: | GMT |
| Utc Offset: | +0 |
Koun-Fao Department is a department of Gontougo Region in Zanzan District, Ivory Coast. In 2021, its population was 167,881 and its seat is the settlement of Koun-Fao. The sub-prefectures of the department are Boahia, Kokomian, Kouassi-Datékro, Koun-Fao, Tankessé, and Tienkoikro.
Koun-Fao Department was created in 2005 as a second-level subdivision via a split-off from Tanda Department.[2] At its creation, it was part of Zanzan Region.
In 2011, districts were introduced as new first-level subdivisions of Ivory Coast. At the same time, regions were reorganised and became second-level subdivisions and all departments were converted into third-level subdivisions. At this time, Koun-Fao Department became part of Gontougo Region in Zanzan District.