Abbé Norbert Wallez (19 October 1882 – 24 September 1952) was a Belgian priest and journalist. He was the editor of the newspaper Le Vingtième Siècle (The Twentieth Century), whose youth supplement, Le Petit Vingtième, first published The Adventures of Tintin.
Wallez studied at the University of Leuven. Ordained a priest in 1906, he devoted himself to teaching, interrupted when he enlisted as a volunteer during the First World War. After the armistice, he continued his teaching career at the religious Bonne Espérance school and at the School of Commerce in Mons. In 1924, by order of Cardinal Désiré-Joseph Mercier, he assumed the leadership of the conservative Catholic newspaper Le Vingtième Siècle.
His ultraconservative ideology was influenced by Charles Maurras and the nationalist Action Française. He was also a great admirer of Mussolini, whom he had visited during a trip to Italy in 1923; he had a signed portrait of the dictator on his office wall. His ideal, as expressed in his book Bélgique et Rhénanie. Quelques directives d'une politique (1923), was the federation of Belgium and the Rhineland, a region of Germany that he considered essentially Catholic, in contrast to Protestant Prussia.
In 1927 the young journalist Georges Remi started working for Le Vingtième Siècle. A year later, Remi became editor-in-chief of Le Petit Vingtième. In 1929, Remi began publishing Tintin in the Land of the Soviets, the first of The Adventures of Tintin, in the eleventh issue of Le Petit Vingtième, under the name Hergé. Wallez was crucial in the choice of the top three destinations of Tintin: Soviet Russia, Belgian Congo and United States. He also facilitated Remi's marriage in 1932 to Germaine Kieckens, who was Wallez's secretary. Hergé's comic series Quick & Flupke also began in Le Vingtième Siècle, in 1930.