Guy Decomble (1910–1964) was a French film and television actor. A character actor he played in a number of supporting parts in postwar cinema. One of his better known roles is as the teacher in The 400 Blows by François Truffaut.

• Les Quatre Cents Coups (1959)

  
• Bob le flambeur (1956)

  
• Jour de fête (1949)

  
• Les Cousins (1959)

  
• Patrie (1946)