The Canton of Bray-sur-Somme is a former canton situated in the department of the Somme and in the Picardy region of northern France. It was disbanded following the French canton reorganisation which came into effect in March 2015.
The canton is organised around the commune of Bray-sur-Somme in the arrondissement of Péronne. The altitude varies from 27m (Sailly-le-Sec) to 123m (Suzanne) for an average of 53m.
The canton of Bray comprised 19 communes and a total of 6,463 inhabitants (2012, without double counting).