This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous. Find sources: "Lee Tim-sing" – news · newspapers · books · scholar · JSTOR (October 2021) (Learn how and when to remove this message) This biography of a living person includes a list of general references, but it lacks sufficient corresponding inline citations. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. Please help to improve this article by introducing more precise citations. (December 2013) (Learn how and when to remove this message) (Learn how and when to remove this message)

Lee Tim-sing (born 1949) is a Hong Kong television producer, director and writer.

After graduating from secondary school, Lee joined Television Broadcasts Limited (TVB) in 1969 as a set decorator. He became a director in 1975 and was promoted to a producer a few years later. Lee was also known for making cameo appearances in several television productions, including a guest appearance in an episode of the variety program Enjoy Yourself Tonight as "Street-sweeper Mau", a role for which he later became known.

In the early 1980s and late 1990s, Lee achieved great success in the genres of wuxia and action thrillers. Many of Lee's television productions also contributed to the popularity of rising actors of their time, such as Chow Yun-fat, Carol Cheng, Felix Wong, Andy Lau, Tony Leung and, recently,^[when?] Wayne Lai. Most of Lee's works are produced by TVB.

In 2016, at the age of 68, Lee Tim-sing announced his retirement, ending his 48-year long career with TVB.^[1]

• 南方網
• 香港電影資料館 – 李添勝
• 香港影庫 – 李添勝