| Duékoué Department | |
| Native Name: | Département de Duékoué |
| Native Name Lang: | fr |
| Settlement Type: | Department |
| Subdivision Type: | Country |
| Subdivision Type1: | District |
| Subdivision Name1: | Montagnes |
| Subdivision Type2: | Region |
| Subdivision Name2: | Guémon |
| Seat Type: | Departmental seat |
| Seat: | Duékoué |
| Established Title: | 1988 |
| Established Date: | Established as a first-level subdivision via a division of Guiglo Dept |
| Established Title1: | 1997 |
| Established Date1: | Converted to a second-level subdivision |
| Established Title2: | 2000 |
| Established Date2: | Transferred to the new Moyen-Cavally Region |
| Established Title3: | 2011 |
| Established Date3: | Converted to a third-level subdivision |
| Government Footnotes: | [1] |
| Leader Title: | Prefect |
| Leader Name: | Sory Sangaré |
| Unit Pref: | Metric |
| Area Total Km2: | 2900 |
| Population Footnotes: | [2] |
| Population Total: | 420,911 |
| Population As Of: | 2021 census |
| Population Density Km2: | auto |
| Timezone: | GMT |
| Utc Offset: | +0 |
Duékoué Department is a department of Guémon Region in Montagnes District, Ivory Coast. In 2021, its population was 420,911 and its seat is the settlement of Duékoué. The sub-prefectures of the department are Bagohouo, Duékoué, Gbapleu, Guéhiébly, and Guézon.
Duékoué Department was created in 1988 as a first-level subdivision via a split-off from Guiglo Department.[3]
In 1997, regions were introduced as new first-level subdivisions of Ivory Coast; as a result, all departments were converted into second-level subdivisions. Duékoué Department was initially included in Dix-Huit Montagnes Region, but in 2000 it was transferred to the newly created Moyen-Cavally 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, Duékoué Department became part of Guémon Region in Montagnes District.