The arrondissement of Ajaccio was created as part of the department Liamone in 1800. Between 1811 and 1976 it was an arrondissement of the department Corse, since 1976 it has been an arrondissement of the department Corse-du-Sud.[4] In March 2017 it gained the commune Olivese from the arrondissement of Sartène.[5]
As a result of the reorganisation of the cantons of France which came into effect in 2015, the borders of the cantons are no longer related to the borders of the arrondissements. The cantons of the arrondissement of Ajaccio were, as of January 2015:[6]