| Louis Gillis | |
| Position: | Catcher |
| Birth Date: | August 8, 1924 |
| Birth Place: | Birmingham, Alabama |
| Death Place: | Birmingham, Alabama |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | Negro league baseball |
| Debutyear: | 1946 |
| Debutteam: | Atlanta Black Crackers |
| Finalyear: | 1952 |
| Finalteam: | Birmingham Black Barons |
| Teams: |
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Louis Charles Gillis Sr. (August 8, 1924 – February 3, 2005), nicknamed "Sea Boy", was an American Negro league catcher from 1946 to 1952.
A native of Birmingham, Alabama, Gillis graduated from A. H. Parker High School, and served in the US Marine Corps in World War II.[1] He broke into the Negro leagues in 1946 with the Atlanta Black Crackers, and later played for the Birmingham Black Barons. Gillis died in Birmingham in 2005 at age 80.[2]