Fernand Dehousse OMRI (French: [də.us]; 3 July 1906 – 10 August 1976) was a Belgian politician.

Originally a Liberal, he went on to join the Socialist Party while he remained a Walloon activist.

After obtaining degrees in Law and Social Sciences at the University of Liège (1929), Dehousse continued his training in Paris, Grenoble and Geneva from 1929 to 1931.

When the Western European Union established a Commission for the Referendum in Saarland, Dehousse was appointed President (1955–1956).

On 20 October 1945, he supported a federalist proposal before the National Walloon Congress, which only received 40% of the votes as against 46% for unity, but which was finally adopted unanimously.