John Shum Kin-Fun
- Born
- 1 January 1952 (74 years)
- Place of birth
- Enping, Jiangmen, China
- Gender
- Male
John Shum Kin-Fun (Chinese: 岑建勳) is a Hong Kong actor and film producer. His English name is sometimes written as John Sham. Whilst known primarily for his comedic acting roles in Hong Kong cinema, he also spent time as a political activist. He is easily recognisable from his spectacles and curly hair.
