The Canton of Châteauneuf-sur-Sarthe is a former French canton located in the Maine-et-Loire département of France, in the arrondissement of Segré.
It had 13,267 inhabitants (2012).
[1] It was disbanded following the French canton reorganisation which came into effect in March 2015.
It consisted of 15 communes, which joined the canton of Tiercé in 2015.
[2] The canton comprised the following communes:[1]