List of Cuban baseball champions

The Cuban baseball champions are the winners of the highest division in the Cuban baseball league system. Organized baseball in Cuba originated with the Cuban League in 1878, which was dissolved during the Cuban Revolution and replaced by the Cuban National Series in 1961.
Early organized Cuban baseball was dominated by teams from the Havana metropolitan area. The most successful teams were Club Habana and Almendares. In the modern-era of Cuban baseball, starting with the establishment of the National Series in 1961, teams from other parts of the country have enjoyed more success, although Industriales of Havana still hold the most titles.
For the entire history of the Cuban League and National Series up to 1985, the champion was determined by win-loss record. The 1985–86 season was the first to incorporate a postseason, in the form of a double round-robin system between four teams; this system has been maintained, with slight changes, up to the present day.