The Canton of Mirambeau is a former canton of the Charente-Maritime département, in France.

It was disbanded following the French canton reorganisation which came into effect in March 2015.

It had 7,815 inhabitants (2012).

[1] The lowest point is the Atlantic Ocean at the commune of Saint-Sorlin-de-Conac, the highest point is at Salignac-de-Mirambeau at 111 m, the average or the centre is 46 m. The most populated commune was Mirambeau with 1,491 inhabitants (2012).

[1] The canton comprised the following communes:[1]