Dakar region is the smallest and most populated region of Senegal, encompassing the capital city of the country, Dakar, and all its suburbs along the Cap–Vert Peninsula, Africa's most westerly point.

The Dakar region is divided into four départements (administrative structures without political power, unlike the French départements). The départements had the following areas and populations at the Census of 2013:

Dakar Department is also a commune (city). This is a situation comparable to Paris which is both a department and a commune. The department/commune of Dakar is further divided into:

Guédiawaye Department is also a commune (city). This department has only one arrondissement, so that Guédiawaye is both a department and an arrondissement. The department /arrondissement/commune of Guédiawaye is further divided into:

Pikine Department is also a commune (city). The department /commune of Pikine is further divided into:

Rufisque Department is made up of two arrondissements and six urban communes:

Within the Dakar 'region, the only politically significant units (i.e. those who have elected officials and wield a significant power) are: the 7 communes, the 2 communautés rurales, and the 43 communes d'arrondissement.

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