The Canton of Saint-Martin-d'Auxigny is a canton situated in the Cher département and in the Centre-Val de Loire region of France.

An area of winegrowing, farming and forestry in the northern part of the arrondissement of Bourges centred on the town of Saint-Martin-d'Auxigny.

The altitude varies from 133m at Fussy to 312m at Menetou-Salon, with an average altitude of 183m.

At the French canton reorganisation which came into effect in March 2015, the canton was expanded from 11 to 15 communes:[2]