| Transua Department | |
| Native Name: | Département de Transua |
| Native Name Lang: | fr |
| Settlement Type: | Department |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Gontougo |
| Seat Type: | Departmental seat |
| Seat: | Transua |
| Established Title: | 2008 |
| 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 |
| Established Title2: | 2014 |
| Established Date2: | Converted back to a second-level subdivision |
| Government Footnotes: | [1] |
| Leader Title: | Prefect |
| Leader Name: | Adja Kio Gossan |
| Unit Pref: | Metric |
| Area Footnotes: | [2] |
| Area Total Km2: | 1130 |
| Population Footnotes: | [3] |
| Population Total: | 112842 |
| Population As Of: | 2021 census |
| Population Density Km2: | auto |
| Timezone: | GMT |
| Utc Offset: | +0 |
Transua Department is a department of Gontougo Region in Zanzan District, Ivory Coast. In 2021, its population was 112,842 and its seat is the settlement of Transua. The sub-prefectures of the department are Assuéfry, Kouassia-Niaguini, and Transua.
Transua Department was created in 2008 as a second-level subdivision via a split-off from Tanda Department.[4] 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, Transua Department became part of Gontougo Region in Zanzan District.