The Despiau-Wlérick museum in Mont-de-Marsan is a municipal fine arts museum , more precisely a glyptothèque , controlled by the State.

It takes the names of Charles Despiau and Robert Wlérick, two sons of Mont-de-Marsan and both celebrated sculptors: Wlérick is famous for sculpting the monument to Marshal Foch at the Place du Trocadéro in Paris in 1936. In all there are over 2,200 sculptures here, created between the end of the 19th century and 1950. Among them are three gilded bronze reliefs made for the 1937 Paris Exhibition by Henri Lagriffoul and works by André Greck and Charles Correia.