He Ain't Heavy, He's My Father (新難兄難弟) is a 1993 Hong Kong comedy-drama film starring Tony Leung Ka-fai and Tony Leung Chiu-wai, who are unrelated, playing father and son. Directed by Peter Chan and Lee Chi-ngai, the film also stars Carina Lau, Anita Yuen and Lawrence Cheng.

The film is a remake of the 1960 film My Intimate Partners. The title is a pun on "He Ain't Heavy, He's My Brother", a hit single for The Hollies in 1969 and for Neil Diamond in 1970.