The canton of Thénac is an administrative division of the Charente-Maritime department, western France. It was created at the French canton reorganisation which came into effect in March 2015. Its seat is in Thénac.^[1]

It consists of the following communes:^[1]

45°40′N 0°39′W / 45.67°N 0.65°W / 45.67; -0.65