Châtillon (French pronunciation: [ʃatijɔ̃] ⓘ; Tchekion in the Gaume dialect, Schättljong or Schasteljong in Luxembourgish) is a village in the Belgian municipality of Saint-Léger, located in the Walloon region of the province of Luxembourg.

Landmarks in Châtillon include the village fountain, old sawmills, 18th-century homes, the birthplace of Belgian writer Édouard Ned, and the limestone formations in the Lahage River (Ruisseau de Lahage) Valley.

[1] After France's 1966 withdrawal from NATO, the mechanic was left with hundreds of scrap cars that gradually became overgrown until a television documentary brought light to the "illegal dump."

[2] Prominent natives of Châtillon include Belgian poet, novelist and essayist Athanase-Camille Glouden (known by his pen name Édouard Ned), and Belgian priest and World War II freedom fighter Constant Bilocq (1912-1945).

During the 19th century, several villagers of Châtillon immigrated to the United States, settling in such places as Big Spring Township, Seneca County, Ohio.