| Zouan-Hounien Department | |
| Native Name: | Département de Zouan-Hounien |
| Native Name Lang: | fr |
| Settlement Type: | Department |
| Subdivision Type: | Country |
| Subdivision Type1: | District |
| Subdivision Name1: | Montagnes |
| Subdivision Type2: | Region |
| Subdivision Name2: | Tonkpi |
| Seat Type: | Departmental seat |
| Seat: | Zouan-Hounien |
| Established Title: | 2005 |
| Established Date: | Established as a second-level subdivision via a division of Danané Dept |
| Established Title1: | 2011 |
| Established Date1: | Converted to a third-level subdivision |
| Government Footnotes: | [1] |
| Leader Title: | Prefect |
| Leader Name: | Lancina Fofana |
| Unit Pref: | Metric |
| Area Total Km2: | 1370 |
| Population Footnotes: | [2] |
| Population Total: | 250,938 |
| Population As Of: | 2021 census |
| Population Density Km2: | auto |
| Timezone: | GMT |
| Utc Offset: | +0 |
Zouan-Hounien Department is a department of Tonkpi Region in Montagnes District, Ivory Coast. In 2021, its population was 250,938 and its seat is the settlement of Zouan-Hounien. The sub-prefectures of the department are Banneu, Bin-Houyé, Goulaleu, Téapleu, Yelleu, and Zouan-Hounien.
Zouan-Hounien Department was created in 2005 as a second-level subdivision via a split-off from Danané Department.[3] At its creation, it was part of Dix-Huit Montagnes 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, Zouan-Hounien Department became part of Tonkpi Region in Montagnes District.