| David Lan Hong-Tsung | |
| Native Name Lang: | zh-hk |
| Honorific-Suffix: | GBS ISO JP |
| Birth Date: | 29 May 1940 |
| Office: | Secretary for Home Affairs |
| Term Start: | 4 September 1997 |
| Term End: | 7 July 2000 |
| Predecessor: | Michael Suen |
| Successor: | Lam Woon-kwong |
| Office1: | Principal Representative, Tokyo |
| Term Start1: | October 1991 |
| Term End1: | September 1997 |
| Successor1: | Paul Leung |
| Alma Mater: | University of London Harvard Business School |
David Lan Hong-Tsung GBS,[1] ISO, JP (born 29 May, 1940) is a former politician and civil servant in Hong Kong who served as the Secretary for Home Affairs from September 1997 to 7 July, 2000.[2] He is currently a National Committee Member of the Chinese People's Political Consultative Conference representing Hong Kong, serving in that post since January 2003.[3]
David is also a businessman who currently serves as an Independent Non Executive Director of SJM Holdings Limited and Hutchison Telecommunications Hong Kong Holdings since 2008.