The Prodigal Son (Chinese: 敗家仔) is a 1981 Hong Kong martial arts film directed by Sammo Hung, who also supporting role and co-writer with Barry Wong. The film stars Yuen Biao, Lam Ching-ying, and Frankie Chan. The film was released on 22 December 1981 and grossed HK$9,150,729. The Prodigal Son was nominated for two Hong Kong Film Awards and won the award for Best Action Choreography.

The film tells the story of Leung Chang, the son of a wealthy man who is half-heartedly studying kung fu. Leung Chang's lack of expertise forces his father to pay people to lose to him in fights. After Leung Chang discovers that his father has been deceiving him, he becomes inspired to study martial arts more seriously and attempts to convince a kung fu expert to take him on as a student.