Willie "Bill" Jefferson (January 27, 1904 – May 31, 1972)was an American baseball pitcher in the Negro leagues.

[1] Jefferson played with several teams from 1937 to 1948, spending the majority of his career with the Cleveland Buckeyes.

[2] He served in the US Army during World War II,[3] and died in Houston, Texas in 1976 at age 71 or 72.

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