| Aquin Arrondissement | |
| Native Name: | Aken Awondisman |
| Native Name Lang: | ht |
| Settlement Type: | Arrondissement |
| Subdivision Type: | Country |
| Subdivision Type1: | Department |
| Subdivision Name1: | Sud |
| Area Total Km2: | 1039.27 |
| Area Urban Km2: | 5.04 |
| Area Rural Km2: | 1034.23 |
| Population Total: | 217827 |
| Population As Of: | 2015 |
| Population Density Km2: | auto |
| Population Urban: | 19446 |
| Population Rural: | 198381 |
| Postal Code Type: | Postal code |
| Postal Code: | HT83 - |
| Utc Offset1: | -5 |
| Timezone1: | Eastern |
| Blank Name Sec1: | Communes |
| Blank Info Sec1: | 3 |
| Blank1 Name Sec1: | Communal Sections |
| Blank1 Info Sec1: | 23 |
| Blank Name Sec2: | IHSI Code |
| Blank Info Sec2: | 073 |
Aquin (Haitian; Haitian Creole: Aken) is an arrondissement in the Sud Department of Haiti. As of 2015, the population was 217,827 inhabitants.[1] Postal codes in the Aquin Arrondissement start with the number 83.
It contains the following communes: