The Negro World Series was a post-season baseball tournament that was held from 1924 to 1927 and from 1942 to 1948 between the champions of the Negro leagues, matching the mid-western winners against their east-coast counterparts. The series was also known as the Colored World Series, especially during the 1920s, and as the Negro League World Series, in more recent books, though contemporary black newspapers usually called it simply, the "World Series", without any modification. A total of eleven Series were contested in its prime, which ultimately saw nine teams compete for a championship and seven who won at least one. The Homestead Grays were the winningest and most present team in the tournament, winning three times in five appearances, while Dave Malarcher and Candy Jim Taylor won the most titles as manager with two each.

The Negro leagues were United States professional baseball leagues comprising teams of African Americans. The term may be used broadly to include professional black teams outside the leagues and it may be used narrowly for the seven relatively successful leagues beginning in 1920 that are sometimes termed "Negro Major Leagues".