Fieffes-Montrelet (Picard: Fièfe-Montèrlet) is a commune in the Somme department in Hauts-de-France in northern France.
The commune is situated on the D49 road, some east of Abbeville.
In 1975, the two communes of Fieffes and Montrelet were united to create a single administrative entity.
The church of Saint-Pierre is in the Romanesque style. The altar has recently (2007) been restored at a cost of â¬7500
Surrounded by the graveyard, it is unusually aligned with the river and in a high position.