| Jonas Gaines | |
| Position: | Pitcher |
| Birth Date: | January 9, 1914 |
| Birth Place: | New Roads, Louisiana |
| Death Place: | Baker, Louisiana |
| Bats: | Right |
| Throws: | Left |
| Debutleague: | Negro league baseball |
| Debutyear: | 1937 |
| Debutteam: | Washington Elite Giants |
| Finalyear: | 1953 |
| Finalteam: | Hankyu Braves |
| Statleague: | NPB |
| Stat1label: | Win–loss record |
| Stat1value: | 14–9 |
| Stat2label: | Earned run average |
| Stat2value: | 2.53 |
| Stat3label: | Strikeouts |
| Stat3value: | 142 |
| Teams: | |
Jonas Donald Gaines (January 9, 1914 – August 6, 1998), nicknamed "Lefty", was an American baseball pitcher in the Negro leagues. He played professionally from 1937 to 1953 with several teams.
A native of New Roads, Louisiana, Gaines served in the US Army during World War II.[1] He pitched in three East-West All-Star Games; 1942, 1946, and 1950. Gaines also pitched in the Cuban League and the Pacific League.[2] He died in Baker, Louisiana in 1998 at age 84.
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