| Tanda Department | |
| Native Name: | Département de Tanda |
| 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: | Tanda |
| Established Title: | 1988 |
| Established Date: | Established as a first-level subdivision via a division of Bondoukou Dept |
| Established Title1: | 1997 |
| Established Date1: | Converted to a second-level subdivision |
| Established Title2: | 2005 |
| Established Date2: | Divided to create Koun-Fao Dept |
| Established Title3: | 2009 |
| Established Date3: | Divided to create Transua Dept |
| Established Title4: | 2011 |
| Established Date4: | Converted to a third-level subdivision |
| Leader Title: | Prefect |
| Leader Name: | Andjou Koua |
| Unit Pref: | Metric |
| Area Footnotes: | [1] |
| Area Total Km2: | 1670 |
| Population Footnotes: | [2] |
| Population Total: | 113523 |
| Population As Of: | 2021 census |
| Population Density Km2: | auto |
| Timezone: | GMT |
| Utc Offset: | +0 |
Tanda Department is a department of Gontougo Region in Zanzan District, Ivory Coast. In 2021, its population was 113,523 and its seat is the settlement of Tanda. The sub-prefectures of the department are Amanvi, Diamba, Tanda, and Tchèdio.
Tanda Department was created in 1988 as a first-level subdivision via a split-off from Bondoukou 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. Tanda Department was included in Zanzan Region.
In 2005, Tanda Department was divided with the split-off creation of Koun-Fao Department.[3] Tanda Department was divided again in 2009 with the creation of Transua Department.[3]
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, Tanda Department became part of Gontougo Region in Zanzan District.