Lee Walker (born 11 February 1976) is a Welsh former professional snooker player and former World Seniors Champion.

After turning professional in 1994 at the age of 18, Walker reached the quarter-finals of the World Championship in 1997, with victories over Dave Harold 10–7 and Alan McManus 13–10, before he lost 13–8 to Alain Robidoux.

He defeated Rhys Clark, and former world champions Neil Robertson and Graeme Dott before losing in the fourth round to Zhou Yuelong.

[2] In the 2017–18 season, Walker had his best run in a ranking event to date, reaching the semi-finals of the 2018 Gibraltar Open where he was defeated 4–2 by eventual runner-up Cao Yupeng.

After losing his first round match against Mark Selby, he announced that he had already retired from all activities on the main tour, due to business and coaching obligations.