| Abidjan Department | |
| Native Name: | Département d'Abidjan |
| Native Name Lang: | fr |
| Settlement Type: | Department |
| Subdivision Type: | Country |
| Subdivision Type1: | District |
| Seat Type: | Departmental seat |
| Seat: | Abidjan |
| Established Title: | 1969 |
| Established Date: | Established as a first-level subdivision |
| Established Title1: | 1988 |
| Established Date1: | Divided to create Grand-Lahou and Tiassalé Depts |
| Established Title2: | 1997 |
| Established Date2: | Converted to a second-level subdivision |
| Established Title3: | 1998 |
| Established Date3: | Divided to create Alépé, Dabou, and Jacqueville Depts |
| Established Title4: | 2011 |
| Established Date4: | Converted to a third-level subdivision |
| Established Title5: | 2011 |
| Established Date5: | Transferred from Lagunes Region to Abidjan Autonomous District |
| Government Footnotes: | [1] |
| Leader Title: | Prefect |
| Leader Name: | Sidiki Diakité |
| Unit Pref: | Metric |
| Area Total Km2: | 2119 |
| Population Footnotes: | [2] |
| Population Total: | 6321017 |
| Population As Of: | 2021 census |
| Population Density Km2: | auto |
| Timezone: | GMT |
| Utc Offset: | +0 |
Abidjan Department (French: Département d'Abidjan, in French pronounced as /depaʁtəmɑ̃ d‿abidʒɑ̃/) is a department of Ivory Coast. It is the sole department in Abidjan Autonomous District: the territory of the department and the district are the same.[3]
Abidjan Department was created in 1969 as one of the 24 new departments that were created to take the place of the six departments that were being abolished. It was created from territory that was formerly part of Sud Department. Using current boundaries as a reference, from 1969 to 1988 the department encompassed all of the Abidjan Autonomous District; all of Grands-Ponts Region; all of Agnéby-Tiassa Region, with the exception of Agboville Department; and Alépé Department in La Mé Region.
Abidjan Department was divided into three parts in 1988 in order to create Grand-Lahou Department and Tiassalé Department.[4]
In 1997, regions were introduced as new first-level subdivisions of Ivory Coast; as a result, all departments were converted into second-level subdivisions. Abidjan Department was included as part of Lagunes Region. Abidjan Department was divided again in 1998 in order to create Alépé, Dabou, and Jacqueville Departments.
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, Abidjan Department became part of Abidjan Autonomous District, one of two districts in the country with no regions. Abidjan Department and the Abidjan Autonomous District share the same territory.[3]