The Canton of Thenon is a canton of the Dordogne département, in France.

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

It had 4,420 inhabitants (2012).

[1] The lowest point is 112 m in the commune of La Boissière-d'Ans, the highest point is in Azerat at 317 m, the average elevation is 209 m. The most populated commune was Thenon with 1,280 inhabitants (2012).

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