Lawrence Yum Sin Ling[1] (; born 1948) was a member of the Hong Kong Legislative Council from 1995 to 1997 and a district councillor for Kowloon City District of Hong Kong from 1994 to 1997 (Prince constituency). He is a founding member of a pro-Republic of China (Taiwan) political organisation 123 Democratic Alliance.
Yum contested in the Hong Kong Legislative Council election in 1998, but was unelected.
His son, Edward Yum, is a political activist in Hong Kong.