| Native Name: | Union Sahel-Bénin (fr) |
| Conventional Long Name: | Sahel-Benin Union |
| Common Name: | Sahel-Benin Union |
| Status: | Union of Republics |
| Status Text: | Union of Republics |
| Year Start: | 1958 or 1959 ? |
| Year End: | 1959 |
| Event Start: | Proclamation |
| Event End: | Dissolution and creation of the Conseil de l'Entente |
| Date End: | May |
| P1: | French West Africa |
| Flag P1: | Flag of France.svg |
| S1: | Conseil de l'Entente |
| S2: | Côte d'Ivoire |
| Flag S2: | Flag of Côte d'Ivoire.svg |
| S3: | Niger |
| Flag S3: | Flag of Niger.svg |
| S4: | Republic of Upper Volta |
| Flag S4: | Flag of Upper Volta.svg |
| S5: | Republic of Dahomey |
| Flag S5: | Flag of Benin.svg |
| Image Map Caption: | Members of the Union in red |
| Common Languages: | French |
| Currency: | CFA Franc |
Sahel-Benin Union was a short-lived union of four former French colonies of French West Africa, that were the four Republics of Upper Volta (Burkina Faso), Niger, Dahomey (Benin) and Côte d’Ivoire.
This union "was the grouping that worked in the most efficient way for the cause of African unity. This union [...] was provided with modest but functional institutions; a Council seating with the Chiefs of States, the ministers of common affairs and the presidents of the National Assemblies [Assemblées Nationales]. A customs union was set up as well as sinking fund. A political, economic and military coordination developed.".[1] Nevertheless, it lasted only for a short time and was replaced by May 1959 far more modestly by the Conseil de l'Entente.