|SK Wyverns – No. 22|
|Catcher / Manager|
|Born:9 September 1958|
|Batted: Right||Threw: Right|
|KBO: March 27, 1982 for the Samsung Lions|
|Last professional appearance|
|KBO: 1997 for the Samsung Lions|
|Career highlights and awards|
|Revised Romanization||I Mansu|
Lee Man-soo (Hangul: 이만수, Hanja: 李萬洙; born September 9, 1958 in Cheorwon, Gangwon-do, South Korea), also spelled as Man Soo "The Baseball" Lee, is a former Korea Professional Baseball catcher and current manager of the SK Wyverns. After a distinguished career as a professional player in South Korea from 1982–1997 , Lee moved on to coaching in 1998, including positions as a coaching staff for the Chicago White Sox, and came back to South Korea in 2006 to serve as a bench coach for the Wyverns.
Upon graduation from Hanyang University in 1982, Lee made an agreement with the Korea Baseball Organization to play for one of the new pro league’s teams instead of remaining in the amateur league. Prior to the inaugural Korean professional baseball season, Lee was finally signed by the Samsung Lions. In the first game of the KBO pro league on March 27, 1982, Lee hit the first home run in Korean professional baseball history against the MBC Chungyong. Lee was a regular catcher of the Lions during the 1982 season and helped his team to reach to the inaugural Korean Series, where the Lions lost to the OB Bears, 4–1–1.
Lee, nicknamed “Hulk” and "Babe Ruth of Korea" for his power and home run ability, was a full-time catcher for 16 seasons with the Samsung Lions, hitting 252 home runs and knocking in 861 RBIs during his career. In 1983, he won hist first home run title and was named League MVP, and the next year became the league’s first triple crown winner as the leader in three major offensive categories ― home runs (23), runs batted in (80) and batting average (.340). His Home Run and RBI totals also led the league in 1985. Gold Gloves came in 5 straight years, 1983–1987, and he appeared in 12 All-Star games. Lee's ultimate career home run total, 252, remained the record until Jang Jong-Hoon of the Hanwha Eagles hit his 253rd on May 23, 1999.
After retiring in 1997, Lee began his coaching career in the United States as the hitting coach for the Class A Kinston Indians in 1998. He moved to the White Sox organization in 1999, and served as the first base coach for the White Sox AAA affiliate Charlotte Knights until assuming his bullpen position with the big club in 2000. From 2000 to 2006, Lee was a coaching staff for the Chicago White Sox, the first Korean to coach in the major leagues. In 2005, as a coach for the White Sox, he earned a World Series ring following the 2005 World Series. 
After the 2006 season, Lee returned to South Korea and signed a two-year contract with the SK Wyverns as the club's bench coach on October 30, 2006. On August 18, 2011, SK Wyverns manager Kim Sung-keun was sacked following his decision to retire from coaching after the 2011 season. Kim’s dismissal came just one day after the 68-year-old manager announced his decision to step down from his post at the end of the season, and Lee was named interim manager of the Wyverns on the same day. 
- Hwang, Tae-hun (August 19, 2011). "Ex-home run king takes over Korean pro baseball champs". The Dong-a Ilbo.
- "Howe welcomes 'dear friend' Peterson". ESPN. Associated Press. 2003-11-06. Retrieved 2011-04-28.
- "Lee Man-soo tops vote for all-time baseball greats". The Korea Herald. June 27, 2011.
- Lee, Sang-won (May 23, 1999). "Jang Jong-hoon, sweeps all the offensive career categories". Yonhap News (in Korean).
- Son, Yong-ho (October 30, 2006). "This is the World Series ring!". OSEN (in Korean).
- Oh, Kyu-wook (August 18, 2011). "SK Wyverns sack manager, promote Lee Man-soo". The Korea Herald.