Negro National League can refer to either one or both of the two leagues of Negro league baseball in the USA in the first half of the twentieth century:
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Negro National League (1920–1931)
The first Negro National League (NNL I) was one of the several Negro league baseball, Negro leagues that were established during the period in the United States when Baseball color line, organized baseball was segregated. The league was formed i ...
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Negro National League (1933–1948)
The second Negro National League (NNL II) was one of the several Negro leagues that were established during the period in the United States when organized baseball was segregated. The league was founded in 1933 by businessman Gus Greenlee of P ...
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