Castang may refer to:
Jeanne-Germaine Castang (1878-1897), French nun, Sister Marie-Céline of the Presentation, beatified in 2007 Veronica Castang (1938—1988), British film, stage and television actress Henri Castang, a fictional detective in works by Nicolas Freeling Mauzac-et-Grand-Castang, a commune in the Dordogne department in Aquitaine in southwestern France
See also Castaing Casting (disambiguation)